19309580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22453}}^1$

素因数の和:22505

約数の個数: 24

約数和(自身を含む): 41494992

約数和(自身を除く): 22185412

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22453, 44906, 89812, 112265, 224530, 449060, 965479, 1930958, 3861916, 4827395, 9654790, 19309580]

約数ペア:

[(1, 19309580), (2, 9654790), (4, 4827395), (5, 3861916), (10, 1930958), (20, 965479), (43, 449060), (86, 224530), (172, 112265), (215, 89812), (430, 44906), (860, 22453)]