206800040

素因数分解:

$2^3\times 5^1\times {\mathrm{5170001}}^1$

素因数の和:5170012

約数の個数: 16

約数和(自身を含む): 465300180

約数和(自身を除く): 258500140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5170001, 10340002, 20680004, 25850005, 41360008, 51700010, 103400020, 206800040]

約数ペア:

[(1, 206800040), (2, 103400020), (4, 51700010), (5, 41360008), (8, 25850005), (10, 20680004), (20, 10340002), (40, 5170001)]