203460220

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{12391}}^1$

素因数の和:13221

約数の個数: 24

約数和(自身を含む): 427821408

約数和(自身を除く): 224361188

約数列:

[1, 2, 4, 5, 10, 20, 821, 1642, 3284, 4105, 8210, 12391, 16420, 24782, 49564, 61955, 123910, 247820, 10173011, 20346022, 40692044, 50865055, 101730110, 203460220]

約数ペア:

[(1, 203460220), (2, 101730110), (4, 50865055), (5, 40692044), (10, 20346022), (20, 10173011), (821, 247820), (1642, 123910), (3284, 61955), (4105, 49564), (8210, 24782), (12391, 16420)]