20777660

素因数分解:

$2^2\times 5^1\times {\mathrm{727}}^1\times {\mathrm{1429}}^1$

素因数の和:2165

約数の個数: 24

約数和(自身を含む): 43723680

約数和(自身を除く): 22946020

約数列:

[1, 2, 4, 5, 10, 20, 727, 1429, 1454, 2858, 2908, 3635, 5716, 7145, 7270, 14290, 14540, 28580, 1038883, 2077766, 4155532, 5194415, 10388830, 20777660]

約数ペア:

[(1, 20777660), (2, 10388830), (4, 5194415), (5, 4155532), (10, 2077766), (20, 1038883), (727, 28580), (1429, 14540), (1454, 14290), (2858, 7270), (2908, 7145), (3635, 5716)]