51904640

素因数分解:

$2^7\times 5^1\times {\mathrm{81101}}^1$

素因数の和:81120

約数の個数: 32

約数和(自身を含む): 124086060

約数和(自身を除く): 72181420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 81101, 162202, 324404, 405505, 648808, 811010, 1297616, 1622020, 2595232, 3244040, 5190464, 6488080, 10380928, 12976160, 25952320, 51904640]

約数ペア:

[(1, 51904640), (2, 25952320), (4, 12976160), (5, 10380928), (8, 6488080), (10, 5190464), (16, 3244040), (20, 2595232), (32, 1622020), (40, 1297616), (64, 811010), (80, 648808), (128, 405505), (160, 324404), (320, 162202), (640, 81101)]