55640020

素因数分解:

$2^2\times 5^1\times {\mathrm{2782001}}^1$

素因数の和:2782010

約数の個数: 12

約数和(自身を含む): 116844084

約数和(自身を除く): 61204064

約数列:

[1, 2, 4, 5, 10, 20, 2782001, 5564002, 11128004, 13910005, 27820010, 55640020]

約数ペア:

[(1, 55640020), (2, 27820010), (4, 13910005), (5, 11128004), (10, 5564002), (20, 2782001)]