2020047580

素因数分解:

$2^2\times 5^1\times {\mathrm{10039}}^1\times {\mathrm{10061}}^1$

素因数の和:20109

約数の個数: 24

約数和(自身を含む): 4242944160

約数和(自身を除く): 2222896580

約数列:

[1, 2, 4, 5, 10, 20, 10039, 10061, 20078, 20122, 40156, 40244, 50195, 50305, 100390, 100610, 200780, 201220, 101002379, 202004758, 404009516, 505011895, 1010023790, 2020047580]

約数ペア:

[(1, 2020047580), (2, 1010023790), (4, 505011895), (5, 404009516), (10, 202004758), (20, 101002379), (10039, 201220), (10061, 200780), (20078, 100610), (20122, 100390), (40156, 50305), (40244, 50195)]