25004005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{1229}}^1$

素因数の和:1560

約数の個数: 16

約数和(自身を含む): 32442480

約数和(自身を除く): 7438475

約数列:

[1, 5, 13, 65, 313, 1229, 1565, 4069, 6145, 15977, 20345, 79885, 384677, 1923385, 5000801, 25004005]

約数ペア:

[(1, 25004005), (5, 5000801), (13, 1923385), (65, 384677), (313, 79885), (1229, 20345), (1565, 15977), (4069, 6145)]