389631125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1471}}^1$

素因数の和:1662

約数の個数: 32

約数和(自身を含む): 527235072

約数和(自身を除く): 137603947

約数列:

[1, 5, 13, 25, 65, 125, 163, 325, 815, 1471, 1625, 2119, 4075, 7355, 10595, 19123, 20375, 36775, 52975, 95615, 183875, 239773, 264875, 478075, 1198865, 2390375, 3117049, 5994325, 15585245, 29971625, 77926225, 389631125]

約数ペア:

[(1, 389631125), (5, 77926225), (13, 29971625), (25, 15585245), (65, 5994325), (125, 3117049), (163, 2390375), (325, 1198865), (815, 478075), (1471, 264875), (1625, 239773), (2119, 183875), (4075, 95615), (7355, 52975), (10595, 36775), (19123, 20375)]