4070020

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1033}}^1$

素因数の和:1239

約数の個数: 24

約数和(自身を含む): 8598744

約数和(自身を除く): 4528724

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1033, 1970, 2066, 3940, 4132, 5165, 10330, 20660, 203501, 407002, 814004, 1017505, 2035010, 4070020]

約数ペア:

[(1, 4070020), (2, 2035010), (4, 1017505), (5, 814004), (10, 407002), (20, 203501), (197, 20660), (394, 10330), (788, 5165), (985, 4132), (1033, 3940), (1970, 2066)]