8211125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:222

約数の個数: 32

約数和(自身を含む): 11461632

約数和(自身を除く): 3250507

約数列:

[1, 5, 13, 25, 31, 65, 125, 155, 163, 325, 403, 775, 815, 1625, 2015, 2119, 3875, 4075, 5053, 10075, 10595, 20375, 25265, 50375, 52975, 65689, 126325, 264875, 328445, 631625, 1642225, 8211125]

約数ペア:

[(1, 8211125), (5, 1642225), (13, 631625), (25, 328445), (31, 264875), (65, 126325), (125, 65689), (155, 52975), (163, 50375), (325, 25265), (403, 20375), (775, 10595), (815, 10075), (1625, 5053), (2015, 4075), (2119, 3875)]