89878975

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{821}}^1$

素因数の和:1011

約数の個数: 24

約数和(自身を含む): 116197920

約数和(自身を除く): 26318945

約数列:

[1, 5, 25, 29, 145, 151, 725, 755, 821, 3775, 4105, 4379, 20525, 21895, 23809, 109475, 119045, 123971, 595225, 619855, 3099275, 3595159, 17975795, 89878975]

約数ペア:

[(1, 89878975), (5, 17975795), (25, 3595159), (29, 3099275), (145, 619855), (151, 595225), (725, 123971), (755, 119045), (821, 109475), (3775, 23809), (4105, 21895), (4379, 20525)]