20206390

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{5039}}^1$

素因数の和:5447

約数の個数: 16

約数和(自身を含む): 36469440

約数和(自身を除く): 16263050

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 5039, 10078, 25195, 50390, 2020639, 4041278, 10103195, 20206390]

約数ペア:

[(1, 20206390), (2, 10103195), (5, 4041278), (10, 2020639), (401, 50390), (802, 25195), (2005, 10078), (4010, 5039)]