664861325

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{5171}}^1$

素因数の和:5357

約数の個数: 24

約数和(自身を含む): 852966240

約数和(自身を除く): 188104915

約数列:

[1, 5, 25, 37, 139, 185, 695, 925, 3475, 5143, 5171, 25715, 25855, 128575, 129275, 191327, 718769, 956635, 3593845, 4783175, 17969225, 26594453, 132972265, 664861325]

約数ペア:

[(1, 664861325), (5, 132972265), (25, 26594453), (37, 17969225), (139, 4783175), (185, 3593845), (695, 956635), (925, 718769), (3475, 191327), (5143, 129275), (5171, 128575), (25715, 25855)]