18680020

素因数分解:

$2^2\times 5^1\times {\mathrm{934001}}^1$

素因数の和:934010

約数の個数: 12

約数和(自身を含む): 39228084

約数和(自身を除く): 20548064

約数列:

[1, 2, 4, 5, 10, 20, 934001, 1868002, 3736004, 4670005, 9340010, 18680020]

約数ペア:

[(1, 18680020), (2, 9340010), (4, 4670005), (5, 3736004), (10, 1868002), (20, 934001)]