19803220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23027}}^1$

素因数の和:23079

約数の個数: 24

約数和(自身を含む): 42555744

約数和(自身を除く): 22752524

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23027, 46054, 92108, 115135, 230270, 460540, 990161, 1980322, 3960644, 4950805, 9901610, 19803220]

約数ペア:

[(1, 19803220), (2, 9901610), (4, 4950805), (5, 3960644), (10, 1980322), (20, 990161), (43, 460540), (86, 230270), (172, 115135), (215, 92108), (430, 46054), (860, 23027)]