22135640

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1109}}^1$

素因数の和:1619

約数の個数: 32

約数和(自身を含む): 49950000

約数和(自身を除く): 27814360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1109, 1996, 2218, 2495, 3992, 4436, 4990, 5545, 8872, 9980, 11090, 19960, 22180, 44360, 553391, 1106782, 2213564, 2766955, 4427128, 5533910, 11067820, 22135640]

約数ペア:

[(1, 22135640), (2, 11067820), (4, 5533910), (5, 4427128), (8, 2766955), (10, 2213564), (20, 1106782), (40, 553391), (499, 44360), (998, 22180), (1109, 19960), (1996, 11090), (2218, 9980), (2495, 8872), (3992, 5545), (4436, 4990)]