84121025

素因数分解:

$5^2\times {\mathrm{29}}^2\times {\mathrm{4001}}^1$

素因数の和:4069

約数の個数: 18

約数和(自身を含む): 108058002

約数和(自身を除く): 23936977

約数列:

[1, 5, 25, 29, 145, 725, 841, 4001, 4205, 20005, 21025, 100025, 116029, 580145, 2900725, 3364841, 16824205, 84121025]

約数ペア:

[(1, 84121025), (5, 16824205), (25, 3364841), (29, 2900725), (145, 580145), (725, 116029), (841, 100025), (4001, 21025), (4205, 20005)]