201220660

素因数分解:

$2^2\times 5^1\times {\mathrm{2011}}^1\times {\mathrm{5003}}^1$

素因数の和:7023

約数の個数: 24

約数和(自身を含む): 422858016

約数和(自身を除く): 221637356

約数列:

[1, 2, 4, 5, 10, 20, 2011, 4022, 5003, 8044, 10006, 10055, 20012, 20110, 25015, 40220, 50030, 100060, 10061033, 20122066, 40244132, 50305165, 100610330, 201220660]

約数ペア:

[(1, 201220660), (2, 100610330), (4, 50305165), (5, 40244132), (10, 20122066), (20, 10061033), (2011, 100060), (4022, 50030), (5003, 40220), (8044, 25015), (10006, 20110), (10055, 20012)]