20085020

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{4001}}^1$

素因数の和:4261

約数の個数: 24

約数和(自身を含む): 42357168

約数和(自身を除く): 22272148

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 4001, 5020, 8002, 16004, 20005, 40010, 80020, 1004251, 2008502, 4017004, 5021255, 10042510, 20085020]

約数ペア:

[(1, 20085020), (2, 10042510), (4, 5021255), (5, 4017004), (10, 2008502), (20, 1004251), (251, 80020), (502, 40010), (1004, 20005), (1255, 16004), (2510, 8002), (4001, 5020)]