20138025640

素因数分解:

$2^3\times 5^1\times {\mathrm{503450641}}^1$

素因数の和:503450652

約数の個数: 16

約数和(自身を含む): 45310557780

約数和(自身を除く): 25172532140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503450641, 1006901282, 2013802564, 2517253205, 4027605128, 5034506410, 10069012820, 20138025640]

約数ペア:

[(1, 20138025640), (2, 10069012820), (4, 5034506410), (5, 4027605128), (8, 2517253205), (10, 2013802564), (20, 1006901282), (40, 503450641)]