20212900

素因数分解:

$2^2\times 5^2\times {\mathrm{202129}}^1$

素因数の和:202143

約数の個数: 18

約数和(自身を含む): 43862210

約数和(自身を除く): 23649310

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 202129, 404258, 808516, 1010645, 2021290, 4042580, 5053225, 10106450, 20212900]

約数ペア:

[(1, 20212900), (2, 10106450), (4, 5053225), (5, 4042580), (10, 2021290), (20, 1010645), (25, 808516), (50, 404258), (100, 202129)]