12507985

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2687}}^1$

素因数の和:2725

約数の個数: 24

約数和(自身を含む): 18385920

約数和(自身を除く): 5877935

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 245, 665, 931, 2687, 4655, 13435, 18809, 51053, 94045, 131663, 255265, 357371, 658315, 1786855, 2501597, 12507985]

約数ペア:

[(1, 12507985), (5, 2501597), (7, 1786855), (19, 658315), (35, 357371), (49, 255265), (95, 131663), (133, 94045), (245, 51053), (665, 18809), (931, 13435), (2687, 4655)]