You can list the number of archivelogs generated this way:
SELECT trunc(COMPLETION_TIME,'DDD') DAY, SUM(BLOCKS * BLOCK_SIZE)/1024/1024 SIZE_MB, COUNT(*) "NB_Files" FROM V$ARCHIVED_LOG GROUP BY trunc (COMPLETION_TIME,'DDD') ORDER BY 1;
Per hour:
SELECT to_char(first_time,'DD-MM-YYYY') DAY, to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'00',1,0)),'999') "00", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'01',1,0)),'999') "01", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'02',1,0)),'999') "02", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'03',1,0)),'999') "03", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'04',1,0)),'999') "04", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'05',1,0)),'999') "05", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'06',1,0)),'999') "06", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'07',1,0)),'999') "07", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'08',1,0)),'999') "08", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'09',1,0)),'999') "09", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'10',1,0)),'999') "10", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'11',1,0)),'999') "11", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'12',1,0)),'999') "12", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'13',1,0)),'999') "13", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'14',1,0)),'999') "14", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'15',1,0)),'999') "15", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'16',1,0)),'999') "16", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'17',1,0)),'999') "17", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'18',1,0)),'999') "18", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'19',1,0)),'999') "19", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'20',1,0)),'999') "20", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'21',1,0)),'999') "21", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'22',1,0)),'999') "22", to_char(SUM(decode(substr(to_char(first_time,'HH24'),1,2),'23',1,0)),'999') "23", COUNT(*) TOT FROM v$log_history WHERE first_time > to_date('01/02/2019', 'DD/MM/YYYY') GROUP BY to_char(first_time,'DD-MM-YYYY') ORDER BY DAY ;