208460080

素因数分解:

$2^4\times 5^1\times {\mathrm{2605751}}^1$

素因数の和:2605764

約数の個数: 20

約数和(自身を含む): 484669872

約数和(自身を除く): 276209792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2605751, 5211502, 10423004, 13028755, 20846008, 26057510, 41692016, 52115020, 104230040, 208460080]

約数ペア:

[(1, 208460080), (2, 104230040), (4, 52115020), (5, 41692016), (8, 26057510), (10, 20846008), (16, 13028755), (20, 10423004), (40, 5211502), (80, 2605751)]