18025640

素因数分解:

$2^3\times 5^1\times {\mathrm{450641}}^1$

素因数の和:450652

約数の個数: 16

約数和(自身を含む): 40557780

約数和(自身を除く): 22532140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 450641, 901282, 1802564, 2253205, 3605128, 4506410, 9012820, 18025640]

約数ペア:

[(1, 18025640), (2, 9012820), (4, 4506410), (5, 3605128), (8, 2253205), (10, 1802564), (20, 901282), (40, 450641)]