20211080

素因数分解:

$2^3\times 5^1\times {\mathrm{505277}}^1$

素因数の和:505288

約数の個数: 16

約数和(自身を含む): 45475020

約数和(自身を除く): 25263940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 505277, 1010554, 2021108, 2526385, 4042216, 5052770, 10105540, 20211080]

約数ペア:

[(1, 20211080), (2, 10105540), (4, 5052770), (5, 4042216), (8, 2526385), (10, 2021108), (20, 1010554), (40, 505277)]