19328020

素因数分解:

$2^2\times 5^1\times {\mathrm{966401}}^1$

素因数の和:966410

約数の個数: 12

約数和(自身を含む): 40588884

約数和(自身を除く): 21260864

約数列:

[1, 2, 4, 5, 10, 20, 966401, 1932802, 3865604, 4832005, 9664010, 19328020]

約数ペア:

[(1, 19328020), (2, 9664010), (4, 4832005), (5, 3865604), (10, 1932802), (20, 966401)]