42807620

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{13633}}^1$

素因数の和:13799

約数の個数: 24

約数和(自身を含む): 90475224

約数和(自身を除く): 47667604

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 13633, 27266, 54532, 68165, 136330, 272660, 2140381, 4280762, 8561524, 10701905, 21403810, 42807620]

約数ペア:

[(1, 42807620), (2, 21403810), (4, 10701905), (5, 8561524), (10, 4280762), (20, 2140381), (157, 272660), (314, 136330), (628, 68165), (785, 54532), (1570, 27266), (3140, 13633)]