83438260

素因数分解:

$2^2\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{2087}}^1$

素因数の和:4095

約数の個数: 24

約数和(自身を含む): 175392000

約数和(自身を除く): 91953740

約数列:

[1, 2, 4, 5, 10, 20, 1999, 2087, 3998, 4174, 7996, 8348, 9995, 10435, 19990, 20870, 39980, 41740, 4171913, 8343826, 16687652, 20859565, 41719130, 83438260]

約数ペア:

[(1, 83438260), (2, 41719130), (4, 20859565), (5, 16687652), (10, 8343826), (20, 4171913), (1999, 41740), (2087, 39980), (3998, 20870), (4174, 19990), (7996, 10435), (8348, 9995)]