18040025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{233}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 23793120

約数和(自身を除く): 5753095

約数列:

[1, 5, 19, 25, 95, 163, 233, 475, 815, 1165, 3097, 4075, 4427, 5825, 15485, 22135, 37979, 77425, 110675, 189895, 721601, 949475, 3608005, 18040025]

約数ペア:

[(1, 18040025), (5, 3608005), (19, 949475), (25, 721601), (95, 189895), (163, 110675), (233, 77425), (475, 37979), (815, 22135), (1165, 15485), (3097, 5825), (4075, 4427)]