20201960

素因数分解:

$2^3\times 5^1\times {\mathrm{505049}}^1$

素因数の和:505060

約数の個数: 16

約数和(自身を含む): 45454500

約数和(自身を除く): 25252540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 505049, 1010098, 2020196, 2525245, 4040392, 5050490, 10100980, 20201960]

約数ペア:

[(1, 20201960), (2, 10100980), (4, 5050490), (5, 4040392), (8, 2525245), (10, 2020196), (20, 1010098), (40, 505049)]