20528810

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{2441}}^1$

素因数の和:2506

約数の個数: 24

約数和(自身を含む): 38285676

約数和(自身を除く): 17756866

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 841, 1682, 2441, 4205, 4882, 8410, 12205, 24410, 70789, 141578, 353945, 707890, 2052881, 4105762, 10264405, 20528810]

約数ペア:

[(1, 20528810), (2, 10264405), (5, 4105762), (10, 2052881), (29, 707890), (58, 353945), (145, 141578), (290, 70789), (841, 24410), (1682, 12205), (2441, 8410), (4205, 4882)]