87600020

素因数分解:

$2^2\times 5^1\times {\mathrm{4380001}}^1$

素因数の和:4380010

約数の個数: 12

約数和(自身を含む): 183960084

約数和(自身を除く): 96360064

約数列:

[1, 2, 4, 5, 10, 20, 4380001, 8760002, 17520004, 21900005, 43800010, 87600020]

約数ペア:

[(1, 87600020), (2, 43800010), (4, 21900005), (5, 17520004), (10, 8760002), (20, 4380001)]