2011980020

素因数分解:

$2^2\times 5^1\times {\mathrm{100599001}}^1$

素因数の和:100599010

約数の個数: 12

約数和(自身を含む): 4225158084

約数和(自身を除く): 2213178064

約数列:

[1, 2, 4, 5, 10, 20, 100599001, 201198002, 402396004, 502995005, 1005990010, 2011980020]

約数ペア:

[(1, 2011980020), (2, 1005990010), (4, 502995005), (5, 402396004), (10, 201198002), (20, 100599001)]