80560660

素因数分解:

$2^2\times 5^1\times {\mathrm{2003}}^1\times {\mathrm{2011}}^1$

素因数の和:4023

約数の個数: 24

約数和(自身を含む): 169346016

約数和(自身を除く): 88785356

約数列:

[1, 2, 4, 5, 10, 20, 2003, 2011, 4006, 4022, 8012, 8044, 10015, 10055, 20030, 20110, 40060, 40220, 4028033, 8056066, 16112132, 20140165, 40280330, 80560660]

約数ペア:

[(1, 80560660), (2, 40280330), (4, 20140165), (5, 16112132), (10, 8056066), (20, 4028033), (2003, 40220), (2011, 40060), (4006, 20110), (4022, 20030), (8012, 10055), (8044, 10015)]