18039620

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{5039}}^1$

素因数の和:5227

約数の個数: 24

約数和(自身を含む): 38102400

約数和(自身を除く): 20062780

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 5039, 10078, 20156, 25195, 50390, 100780, 901981, 1803962, 3607924, 4509905, 9019810, 18039620]

約数ペア:

[(1, 18039620), (2, 9019810), (4, 4509905), (5, 3607924), (10, 1803962), (20, 901981), (179, 100780), (358, 50390), (716, 25195), (895, 20156), (1790, 10078), (3580, 5039)]