7904975

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{1871}}^1$

素因数の和:1907

約数の個数: 18

約数和(自身を含む): 10619856

約数和(自身を除く): 2714881

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 1871, 4225, 9355, 24323, 46775, 121615, 316199, 608075, 1580995, 7904975]

約数ペア:

[(1, 7904975), (5, 1580995), (13, 608075), (25, 316199), (65, 121615), (169, 46775), (325, 24323), (845, 9355), (1871, 4225)]