402284620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{490591}}^1$

素因数の和:490641

約数の個数: 24

約数和(自身を含む): 865404288

約数和(自身を除く): 463119668

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 490591, 981182, 1962364, 2452955, 4905910, 9811820, 20114231, 40228462, 80456924, 100571155, 201142310, 402284620]

約数ペア:

[(1, 402284620), (2, 201142310), (4, 100571155), (5, 80456924), (10, 40228462), (20, 20114231), (41, 9811820), (82, 4905910), (164, 2452955), (205, 1962364), (410, 981182), (820, 490591)]