8151620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{9941}}^1$

素因数の和:9991

約数の個数: 24

約数和(自身を含む): 17537688

約数和(自身を除く): 9386068

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 9941, 19882, 39764, 49705, 99410, 198820, 407581, 815162, 1630324, 2037905, 4075810, 8151620]

約数ペア:

[(1, 8151620), (2, 4075810), (4, 2037905), (5, 1630324), (10, 815162), (20, 407581), (41, 198820), (82, 99410), (164, 49705), (205, 39764), (410, 19882), (820, 9941)]