87907480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{51109}}^1$

素因数の和:51163

約数の個数: 32

約数和(自身を含む): 202395600

約数和(自身を除く): 114488120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 51109, 102218, 204436, 255545, 408872, 511090, 1022180, 2044360, 2197687, 4395374, 8790748, 10988435, 17581496, 21976870, 43953740, 87907480]

約数ペア:

[(1, 87907480), (2, 43953740), (4, 21976870), (5, 17581496), (8, 10988435), (10, 8790748), (20, 4395374), (40, 2197687), (43, 2044360), (86, 1022180), (172, 511090), (215, 408872), (344, 255545), (430, 204436), (860, 102218), (1720, 51109)]