87396440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70481}}^1$

素因数の和:70523

約数の個数: 32

約数和(自身を含む): 202988160

約数和(自身を除く): 115591720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 70481, 140962, 281924, 352405, 563848, 704810, 1409620, 2184911, 2819240, 4369822, 8739644, 10924555, 17479288, 21849110, 43698220, 87396440]

約数ペア:

[(1, 87396440), (2, 43698220), (4, 21849110), (5, 17479288), (8, 10924555), (10, 8739644), (20, 4369822), (31, 2819240), (40, 2184911), (62, 1409620), (124, 704810), (155, 563848), (248, 352405), (310, 281924), (620, 140962), (1240, 70481)]