90691640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{174407}}^1$

素因数の和:174431

約数の個数: 32

約数和(自身を含む): 219754080

約数和(自身を除く): 129062440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 174407, 348814, 697628, 872035, 1395256, 1744070, 2267291, 3488140, 4534582, 6976280, 9069164, 11336455, 18138328, 22672910, 45345820, 90691640]

約数ペア:

[(1, 90691640), (2, 45345820), (4, 22672910), (5, 18138328), (8, 11336455), (10, 9069164), (13, 6976280), (20, 4534582), (26, 3488140), (40, 2267291), (52, 1744070), (65, 1395256), (104, 872035), (130, 697628), (260, 348814), (520, 174407)]