20012620

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{2089}}^1$

素因数の和:2577

約数の個数: 24

約数和(自身を含む): 42134400

約数和(自身を除く): 22121780

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2089, 2395, 4178, 4790, 8356, 9580, 10445, 20890, 41780, 1000631, 2001262, 4002524, 5003155, 10006310, 20012620]

約数ペア:

[(1, 20012620), (2, 10006310), (4, 5003155), (5, 4002524), (10, 2001262), (20, 1000631), (479, 41780), (958, 20890), (1916, 10445), (2089, 9580), (2395, 8356), (4178, 4790)]