2019905980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1422469}}^1$

素因数の和:1422549

約数の個数: 24

約数和(自身を含む): 4301549280

約数和(自身を除く): 2281643300

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1422469, 2844938, 5689876, 7112345, 14224690, 28449380, 100995299, 201990598, 403981196, 504976495, 1009952990, 2019905980]

約数ペア:

[(1, 2019905980), (2, 1009952990), (4, 504976495), (5, 403981196), (10, 201990598), (20, 100995299), (71, 28449380), (142, 14224690), (284, 7112345), (355, 5689876), (710, 2844938), (1420, 1422469)]