31900990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{3671}}^1$

素因数の和:3768

約数の個数: 32

約数和(自身を含む): 63452160

約数和(自身を除く): 31551170

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 110, 158, 395, 790, 869, 1738, 3671, 4345, 7342, 8690, 18355, 36710, 40381, 80762, 201905, 290009, 403810, 580018, 1450045, 2900090, 3190099, 6380198, 15950495, 31900990]

約数ペア:

[(1, 31900990), (2, 15950495), (5, 6380198), (10, 3190099), (11, 2900090), (22, 1450045), (55, 580018), (79, 403810), (110, 290009), (158, 201905), (395, 80762), (790, 40381), (869, 36710), (1738, 18355), (3671, 8690), (4345, 7342)]