202012540

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{19387}}^1$

素因数の和:19917

約数の個数: 24

約数和(自身を含む): 425062512

約数和(自身を除く): 223049972

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 2084, 2605, 5210, 10420, 19387, 38774, 77548, 96935, 193870, 387740, 10100627, 20201254, 40402508, 50503135, 101006270, 202012540]

約数ペア:

[(1, 202012540), (2, 101006270), (4, 50503135), (5, 40402508), (10, 20201254), (20, 10100627), (521, 387740), (1042, 193870), (2084, 96935), (2605, 77548), (5210, 38774), (10420, 19387)]