87504920

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{13421}}^1$

素因数の和:13595

約数の個数: 32

約数和(自身を含む): 198108720

約数和(自身を除く): 110603800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 13421, 26842, 53684, 67105, 107368, 134210, 268420, 536840, 2187623, 4375246, 8750492, 10938115, 17500984, 21876230, 43752460, 87504920]

約数ペア:

[(1, 87504920), (2, 43752460), (4, 21876230), (5, 17500984), (8, 10938115), (10, 8750492), (20, 4375246), (40, 2187623), (163, 536840), (326, 268420), (652, 134210), (815, 107368), (1304, 67105), (1630, 53684), (3260, 26842), (6520, 13421)]