18907375

素因数分解:

$5^3\times {\mathrm{19}}^2\times {\mathrm{419}}^1$

素因数の和:472

約数の個数: 24

約数和(自身を含む): 24963120

約数和(自身を除く): 6055745

約数列:

[1, 5, 19, 25, 95, 125, 361, 419, 475, 1805, 2095, 2375, 7961, 9025, 10475, 39805, 45125, 52375, 151259, 199025, 756295, 995125, 3781475, 18907375]

約数ペア:

[(1, 18907375), (5, 3781475), (19, 995125), (25, 756295), (95, 199025), (125, 151259), (361, 52375), (419, 45125), (475, 39805), (1805, 10475), (2095, 9025), (2375, 7961)]