2439820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2837}}^1$

素因数の和:2889

約数の個数: 24

約数和(自身を含む): 5244624

約数和(自身を除く): 2804804

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 2837, 5674, 11348, 14185, 28370, 56740, 121991, 243982, 487964, 609955, 1219910, 2439820]

約数ペア:

[(1, 2439820), (2, 1219910), (4, 609955), (5, 487964), (10, 243982), (20, 121991), (43, 56740), (86, 28370), (172, 14185), (215, 11348), (430, 5674), (860, 2837)]