3978010

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1999}}^1$

素因数の和:2205

約数の個数: 16

約数和(自身を含む): 7200000

約数和(自身を除く): 3221990

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 1999, 3998, 9995, 19990, 397801, 795602, 1989005, 3978010]

約数ペア:

[(1, 3978010), (2, 1989005), (5, 795602), (10, 397801), (199, 19990), (398, 9995), (995, 3998), (1990, 1999)]