31641640

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{5309}}^1$

素因数の和:5469

約数の個数: 32

約数和(自身を含む): 71685000

約数和(自身を除く): 40043360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5309, 5960, 10618, 21236, 26545, 42472, 53090, 106180, 212360, 791041, 1582082, 3164164, 3955205, 6328328, 7910410, 15820820, 31641640]

約数ペア:

[(1, 31641640), (2, 15820820), (4, 7910410), (5, 6328328), (8, 3955205), (10, 3164164), (20, 1582082), (40, 791041), (149, 212360), (298, 106180), (596, 53090), (745, 42472), (1192, 26545), (1490, 21236), (2980, 10618), (5309, 5960)]