19131620

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2179}}^1$

素因数の和:2627

約数の個数: 24

約数和(自身を含む): 40286400

約数和(自身を除く): 21154780

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2179, 2195, 4358, 4390, 8716, 8780, 10895, 21790, 43580, 956581, 1913162, 3826324, 4782905, 9565810, 19131620]

約数ペア:

[(1, 19131620), (2, 9565810), (4, 4782905), (5, 3826324), (10, 1913162), (20, 956581), (439, 43580), (878, 21790), (1756, 10895), (2179, 8780), (2195, 8716), (4358, 4390)]