81947006

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1\times {\mathrm{1999}}^1$

素因数の和:2303

約数の個数: 16

約数和(自身を含む): 124800000

約数和(自身を除く): 42852994

約数列:

[1, 2, 103, 199, 206, 398, 1999, 3998, 20497, 40994, 205897, 397801, 411794, 795602, 40973503, 81947006]

約数ペア:

[(1, 81947006), (2, 40973503), (103, 795602), (199, 411794), (206, 397801), (398, 205897), (1999, 40994), (3998, 20497)]