12861515

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{367}}^1$

素因数の和:578

約数の個数: 16

約数和(自身を含む): 15932928

約数和(自身を除く): 3071413

約数列:

[1, 5, 43, 163, 215, 367, 815, 1835, 7009, 15781, 35045, 59821, 78905, 299105, 2572303, 12861515]

約数ペア:

[(1, 12861515), (5, 2572303), (43, 299105), (163, 78905), (215, 59821), (367, 35045), (815, 15781), (1835, 7009)]