18687175

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{4423}}^1$

素因数の和:4459

約数の個数: 18

約数和(自身を含む): 25097352

約数和(自身を除く): 6410177

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 4423, 22115, 57499, 110575, 287495, 747487, 1437475, 3737435, 18687175]

約数ペア:

[(1, 18687175), (5, 3737435), (13, 1437475), (25, 747487), (65, 287495), (169, 110575), (325, 57499), (845, 22115), (4225, 4423)]