81396390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{87523}}^1$

素因数の和:87564

約数の個数: 32

約数和(自身を含む): 201655296

約数和(自身を除く): 120258906

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 930, 87523, 175046, 262569, 437615, 525138, 875230, 1312845, 2625690, 2713213, 5426426, 8139639, 13566065, 16279278, 27132130, 40698195, 81396390]

約数ペア:

[(1, 81396390), (2, 40698195), (3, 27132130), (5, 16279278), (6, 13566065), (10, 8139639), (15, 5426426), (30, 2713213), (31, 2625690), (62, 1312845), (93, 875230), (155, 525138), (186, 437615), (310, 262569), (465, 175046), (930, 87523)]