87986680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70957}}^1$

素因数の和:70999

約数の個数: 32

約数和(自身を含む): 204359040

約数和(自身を除く): 116372360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 70957, 141914, 283828, 354785, 567656, 709570, 1419140, 2199667, 2838280, 4399334, 8798668, 10998335, 17597336, 21996670, 43993340, 87986680]

約数ペア:

[(1, 87986680), (2, 43993340), (4, 21996670), (5, 17597336), (8, 10998335), (10, 8798668), (20, 4399334), (31, 2838280), (40, 2199667), (62, 1419140), (124, 709570), (155, 567656), (248, 354785), (310, 283828), (620, 141914), (1240, 70957)]