90131875

素因数分解:

$5^4\times {\mathrm{17}}^2\times {\mathrm{499}}^1$

素因数の和:553

約数の個数: 30

約数和(自身を含む): 119883500

約数和(自身を除く): 29751625

約数列:

[1, 5, 17, 25, 85, 125, 289, 425, 499, 625, 1445, 2125, 2495, 7225, 8483, 10625, 12475, 36125, 42415, 62375, 144211, 180625, 212075, 311875, 721055, 1060375, 3605275, 5301875, 18026375, 90131875]

約数ペア:

[(1, 90131875), (5, 18026375), (17, 5301875), (25, 3605275), (85, 1060375), (125, 721055), (289, 311875), (425, 212075), (499, 180625), (625, 144211), (1445, 62375), (2125, 42415), (2495, 36125), (7225, 12475), (8483, 10625)]