31081475

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{997}}^1$

素因数の和:1079

約数の個数: 24

約数和(自身を含む): 40838160

約数和(自身を除く): 9756685

約数列:

[1, 5, 25, 29, 43, 145, 215, 725, 997, 1075, 1247, 4985, 6235, 24925, 28913, 31175, 42871, 144565, 214355, 722825, 1071775, 1243259, 6216295, 31081475]

約数ペア:

[(1, 31081475), (5, 6216295), (25, 1243259), (29, 1071775), (43, 722825), (145, 214355), (215, 144565), (725, 42871), (997, 31175), (1075, 28913), (1247, 24925), (4985, 6235)]