131562275

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{31139}}^1$

素因数の和:31175

約数の個数: 18

約数和(自身を含む): 176657220

約数和(自身を除く): 45094945

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 31139, 155695, 404807, 778475, 2024035, 5262491, 10120175, 26312455, 131562275]

約数ペア:

[(1, 131562275), (5, 26312455), (13, 10120175), (25, 5262491), (65, 2024035), (169, 778475), (325, 404807), (845, 155695), (4225, 31139)]