19892120

素因数分解:

$2^3\times 5^1\times {\mathrm{497303}}^1$

素因数の和:497314

約数の個数: 16

約数和(自身を含む): 44757360

約数和(自身を除く): 24865240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 497303, 994606, 1989212, 2486515, 3978424, 4973030, 9946060, 19892120]

約数ペア:

[(1, 19892120), (2, 9946060), (4, 4973030), (5, 3978424), (8, 2486515), (10, 1989212), (20, 994606), (40, 497303)]