219904087220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{255702427}}^1$

素因数の和:255702479

約数の個数: 24

約数和(自身を含む): 472538086944

約数和(自身を除く): 252633999724

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 255702427, 511404854, 1022809708, 1278512135, 2557024270, 5114048540, 10995204361, 21990408722, 43980817444, 54976021805, 109952043610, 219904087220]

約数ペア:

[(1, 219904087220), (2, 109952043610), (4, 54976021805), (5, 43980817444), (10, 21990408722), (20, 10995204361), (43, 5114048540), (86, 2557024270), (172, 1278512135), (215, 1022809708), (430, 511404854), (860, 255702427)]