20177839940

素因数分解:

$2^2\times 5^1\times {\mathrm{2113}}^1\times {\mathrm{477469}}^1$

素因数の和:479591

約数の個数: 24

約数和(自身を含む): 42393606360

約数和(自身を除く): 22215766420

約数列:

[1, 2, 4, 5, 10, 20, 2113, 4226, 8452, 10565, 21130, 42260, 477469, 954938, 1909876, 2387345, 4774690, 9549380, 1008891997, 2017783994, 4035567988, 5044459985, 10088919970, 20177839940]

約数ペア:

[(1, 20177839940), (2, 10088919970), (4, 5044459985), (5, 4035567988), (10, 2017783994), (20, 1008891997), (2113, 9549380), (4226, 4774690), (8452, 2387345), (10565, 1909876), (21130, 954938), (42260, 477469)]