20111875640

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1007609}}^1$

素因数の和:1008119

約数の個数: 32

約数和(自身を含む): 45342450000

約数和(自身を除く): 25230574360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3992, 4990, 9980, 19960, 1007609, 2015218, 4030436, 5038045, 8060872, 10076090, 20152180, 40304360, 502796891, 1005593782, 2011187564, 2513984455, 4022375128, 5027968910, 10055937820, 20111875640]

約数ペア:

[(1, 20111875640), (2, 10055937820), (4, 5027968910), (5, 4022375128), (8, 2513984455), (10, 2011187564), (20, 1005593782), (40, 502796891), (499, 40304360), (998, 20152180), (1996, 10076090), (2495, 8060872), (3992, 5038045), (4990, 4030436), (9980, 2015218), (19960, 1007609)]