20413390

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1637}}^1$

素因数の和:1716

約数の個数: 32

約数和(自身を含む): 38918880

約数和(自身を除く): 18505490

約数列:

[1, 2, 5, 10, 29, 43, 58, 86, 145, 215, 290, 430, 1247, 1637, 2494, 3274, 6235, 8185, 12470, 16370, 47473, 70391, 94946, 140782, 237365, 351955, 474730, 703910, 2041339, 4082678, 10206695, 20413390]

約数ペア:

[(1, 20413390), (2, 10206695), (5, 4082678), (10, 2041339), (29, 703910), (43, 474730), (58, 351955), (86, 237365), (145, 140782), (215, 94946), (290, 70391), (430, 47473), (1247, 16370), (1637, 12470), (2494, 8185), (3274, 6235)]