28330580

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2203}}^1$

素因数の和:2855

約数の個数: 24

約数和(自身を含む): 59613792

約数和(自身を除く): 31283212

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2203, 2572, 3215, 4406, 6430, 8812, 11015, 12860, 22030, 44060, 1416529, 2833058, 5666116, 7082645, 14165290, 28330580]

約数ペア:

[(1, 28330580), (2, 14165290), (4, 7082645), (5, 5666116), (10, 2833058), (20, 1416529), (643, 44060), (1286, 22030), (2203, 12860), (2572, 11015), (3215, 8812), (4406, 6430)]