20004372020

素因数分解:

$2^2\times 5^1\times {\mathrm{6221}}^1\times {\mathrm{160781}}^1$

素因数の和:167011

約数の個数: 24

約数和(自身を含む): 42016195368

約数和(自身を除く): 22011823348

約数列:

[1, 2, 4, 5, 10, 20, 6221, 12442, 24884, 31105, 62210, 124420, 160781, 321562, 643124, 803905, 1607810, 3215620, 1000218601, 2000437202, 4000874404, 5001093005, 10002186010, 20004372020]

約数ペア:

[(1, 20004372020), (2, 10002186010), (4, 5001093005), (5, 4000874404), (10, 2000437202), (20, 1000218601), (6221, 3215620), (12442, 1607810), (24884, 803905), (31105, 643124), (62210, 321562), (124420, 160781)]