20052820

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1451}}^1$

素因数の和:2151

約数の個数: 24

約数和(自身を含む): 42200928

約数和(自身を除く): 22148108

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 1451, 2764, 2902, 3455, 5804, 6910, 7255, 13820, 14510, 29020, 1002641, 2005282, 4010564, 5013205, 10026410, 20052820]

約数ペア:

[(1, 20052820), (2, 10026410), (4, 5013205), (5, 4010564), (10, 2005282), (20, 1002641), (691, 29020), (1382, 14510), (1451, 13820), (2764, 7255), (2902, 6910), (3455, 5804)]