826699480

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{31267}}^1$

素因数の和:31939

約数の個数: 32

約数和(自身を含む): 1862947440

約数和(自身を除く): 1036247960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 5288, 6610, 13220, 26440, 31267, 62534, 125068, 156335, 250136, 312670, 625340, 1250680, 20667487, 41334974, 82669948, 103337435, 165339896, 206674870, 413349740, 826699480]

約数ペア:

[(1, 826699480), (2, 413349740), (4, 206674870), (5, 165339896), (8, 103337435), (10, 82669948), (20, 41334974), (40, 20667487), (661, 1250680), (1322, 625340), (2644, 312670), (3305, 250136), (5288, 156335), (6610, 125068), (13220, 62534), (26440, 31267)]