20090440

素因数分解:

$2^3\times 5^1\times {\mathrm{502261}}^1$

素因数の和:502272

約数の個数: 16

約数和(自身を含む): 45203580

約数和(自身を除く): 25113140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 502261, 1004522, 2009044, 2511305, 4018088, 5022610, 10045220, 20090440]

約数ペア:

[(1, 20090440), (2, 10045220), (4, 5022610), (5, 4018088), (8, 2511305), (10, 2009044), (20, 1004522), (40, 502261)]