678261780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{538303}}^1$

素因数の和:538325

約数の個数: 72

約数和(自身を含む): 2351311872

約数和(自身を除く): 1673050092

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 538303, 1076606, 1614909, 2153212, 2691515, 3229818, 3768121, 4844727, 5383030, 6459636, 7536242, 8074545, 9689454, 10766060, 11304363, 15072484, 16149090, 18840605, 19378908, 22608726, 24223635, 32298180, 33913089, 37681210, 45217452, 48447270, 56521815, 67826178, 75362420, 96894540, 113043630, 135652356, 169565445, 226087260, 339130890, 678261780]

約数ペア:

[(1, 678261780), (2, 339130890), (3, 226087260), (4, 169565445), (5, 135652356), (6, 113043630), (7, 96894540), (9, 75362420), (10, 67826178), (12, 56521815), (14, 48447270), (15, 45217452), (18, 37681210), (20, 33913089), (21, 32298180), (28, 24223635), (30, 22608726), (35, 19378908), (36, 18840605), (42, 16149090), (45, 15072484), (60, 11304363), (63, 10766060), (70, 9689454), (84, 8074545), (90, 7536242), (105, 6459636), (126, 5383030), (140, 4844727), (180, 3768121), (210, 3229818), (252, 2691515), (315, 2153212), (420, 1614909), (630, 1076606), (1260, 538303)]