31162840

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{2207}}^1$

素因数の和:2571

約数の個数: 32

約数和(自身を含む): 70346880

約数和(自身を除く): 39184040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1765, 2207, 2824, 3530, 4414, 7060, 8828, 11035, 14120, 17656, 22070, 44140, 88280, 779071, 1558142, 3116284, 3895355, 6232568, 7790710, 15581420, 31162840]

約数ペア:

[(1, 31162840), (2, 15581420), (4, 7790710), (5, 6232568), (8, 3895355), (10, 3116284), (20, 1558142), (40, 779071), (353, 88280), (706, 44140), (1412, 22070), (1765, 17656), (2207, 14120), (2824, 11035), (3530, 8828), (4414, 7060)]