2005145989

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{40499}}^1$

素因数の和:41160

約数の個数: 16

約数和(自身を含む): 2503872000

約数和(自身を除く): 498726011

約数列:

[1, 7, 11, 77, 643, 4501, 7073, 40499, 49511, 283493, 445489, 3118423, 26040857, 182285999, 286449427, 2005145989]

約数ペア:

[(1, 2005145989), (7, 286449427), (11, 182285999), (77, 26040857), (643, 3118423), (4501, 445489), (7073, 283493), (40499, 49511)]