85304720

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11981}}^1$

素因数の和:12083

約数の個数: 40

約数和(自身を含む): 200578680

約数和(自身を除く): 115273960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 11981, 23962, 47924, 59905, 95848, 119810, 191696, 239620, 479240, 958480, 1066309, 2132618, 4265236, 5331545, 8530472, 10663090, 17060944, 21326180, 42652360, 85304720]

約数ペア:

[(1, 85304720), (2, 42652360), (4, 21326180), (5, 17060944), (8, 10663090), (10, 8530472), (16, 5331545), (20, 4265236), (40, 2132618), (80, 1066309), (89, 958480), (178, 479240), (356, 239620), (445, 191696), (712, 119810), (890, 95848), (1424, 59905), (1780, 47924), (3560, 23962), (7120, 11981)]