678297820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{11579}}^1$

素因数の和:11718

約数の個数: 48

約数和(自身を含む): 1488261600

約数和(自身を除く): 809963780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 101, 116, 145, 202, 290, 404, 505, 580, 1010, 2020, 2929, 5858, 11579, 11716, 14645, 23158, 29290, 46316, 57895, 58580, 115790, 231580, 335791, 671582, 1169479, 1343164, 1678955, 2338958, 3357910, 4677916, 5847395, 6715820, 11694790, 23389580, 33914891, 67829782, 135659564, 169574455, 339148910, 678297820]

約数ペア:

[(1, 678297820), (2, 339148910), (4, 169574455), (5, 135659564), (10, 67829782), (20, 33914891), (29, 23389580), (58, 11694790), (101, 6715820), (116, 5847395), (145, 4677916), (202, 3357910), (290, 2338958), (404, 1678955), (505, 1343164), (580, 1169479), (1010, 671582), (2020, 335791), (2929, 231580), (5858, 115790), (11579, 58580), (11716, 57895), (14645, 46316), (23158, 29290)]