1389724225

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{443}}^1\times {\mathrm{4327}}^1$

素因数の和:4809

約数の個数: 24

約数和(自身を含む): 1787117760

約数和(自身を除く): 397393535

約数列:

[1, 5, 25, 29, 145, 443, 725, 2215, 4327, 11075, 12847, 21635, 64235, 108175, 125483, 321175, 627415, 1916861, 3137075, 9584305, 47921525, 55588969, 277944845, 1389724225]

約数ペア:

[(1, 1389724225), (5, 277944845), (25, 55588969), (29, 47921525), (145, 9584305), (443, 3137075), (725, 1916861), (2215, 627415), (4327, 321175), (11075, 125483), (12847, 108175), (21635, 64235)]