18149375

素因数分解:

$5^4\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:500

約数の個数: 20

約数和(自身を含む): 23055120

約数和(自身を除く): 4905745

約数列:

[1, 5, 25, 71, 125, 355, 409, 625, 1775, 2045, 8875, 10225, 29039, 44375, 51125, 145195, 255625, 725975, 3629875, 18149375]

約数ペア:

[(1, 18149375), (5, 3629875), (25, 725975), (71, 255625), (125, 145195), (355, 51125), (409, 44375), (625, 29039), (1775, 10225), (2045, 8875)]