206880040

素因数分解:

$2^3\times 5^1\times {\mathrm{5172001}}^1$

素因数の和:5172012

約数の個数: 16

約数和(自身を含む): 465480180

約数和(自身を除く): 258600140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5172001, 10344002, 20688004, 25860005, 41376008, 51720010, 103440020, 206880040]

約数ペア:

[(1, 206880040), (2, 103440020), (4, 51720010), (5, 41376008), (8, 25860005), (10, 20688004), (20, 10344002), (40, 5172001)]