20069780

素因数分解:

$2^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{2011}}^1$

素因数の和:2519

約数の個数: 24

約数和(自身を含む): 42252000

約数和(自身を除く): 22182220

約数列:

[1, 2, 4, 5, 10, 20, 499, 998, 1996, 2011, 2495, 4022, 4990, 8044, 9980, 10055, 20110, 40220, 1003489, 2006978, 4013956, 5017445, 10034890, 20069780]

約数ペア:

[(1, 20069780), (2, 10034890), (4, 5017445), (5, 4013956), (10, 2006978), (20, 1003489), (499, 40220), (998, 20110), (1996, 10055), (2011, 9980), (2495, 8044), (4022, 4990)]