20738510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2381}}^1$

素因数の和:2468

約数の個数: 32

約数和(自身を含む): 40817952

約数和(自身を除く): 20079442

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 335, 670, 871, 1742, 2381, 4355, 4762, 8710, 11905, 23810, 30953, 61906, 154765, 159527, 309530, 319054, 797635, 1595270, 2073851, 4147702, 10369255, 20738510]

約数ペア:

[(1, 20738510), (2, 10369255), (5, 4147702), (10, 2073851), (13, 1595270), (26, 797635), (65, 319054), (67, 309530), (130, 159527), (134, 154765), (335, 61906), (670, 30953), (871, 23810), (1742, 11905), (2381, 8710), (4355, 4762)]