31409480

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{6949}}^1$

素因数の和:7073

約数の個数: 32

約数和(自身を含む): 71307000

約数和(自身を除く): 39897520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 6949, 13898, 27796, 34745, 55592, 69490, 138980, 277960, 785237, 1570474, 3140948, 3926185, 6281896, 7852370, 15704740, 31409480]

約数ペア:

[(1, 31409480), (2, 15704740), (4, 7852370), (5, 6281896), (8, 3926185), (10, 3140948), (20, 1570474), (40, 785237), (113, 277960), (226, 138980), (452, 69490), (565, 55592), (904, 34745), (1130, 27796), (2260, 13898), (4520, 6949)]