20110025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1439}}^1$

素因数の和:1505

約数の個数: 24

約数和(自身を含む): 27498240

約数和(自身を除く): 7388215

約数列:

[1, 5, 13, 25, 43, 65, 215, 325, 559, 1075, 1439, 2795, 7195, 13975, 18707, 35975, 61877, 93535, 309385, 467675, 804401, 1546925, 4022005, 20110025]

約数ペア:

[(1, 20110025), (5, 4022005), (13, 1546925), (25, 804401), (43, 467675), (65, 309385), (215, 93535), (325, 61877), (559, 35975), (1075, 18707), (1439, 13975), (2795, 7195)]