39840040

素因数分解:

$2^3\times 5^1\times {\mathrm{996001}}^1$

素因数の和:996012

約数の個数: 16

約数和(自身を含む): 89640180

約数和(自身を除く): 49800140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 996001, 1992002, 3984004, 4980005, 7968008, 9960010, 19920020, 39840040]

約数ペア:

[(1, 39840040), (2, 19920020), (4, 9960010), (5, 7968008), (8, 4980005), (10, 3984004), (20, 1992002), (40, 996001)]