40396040

素因数分解:

$2^3\times 5^1\times {\mathrm{1009901}}^1$

素因数の和:1009912

約数の個数: 16

約数和(自身を含む): 90891180

約数和(自身を除く): 50495140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1009901, 2019802, 4039604, 5049505, 8079208, 10099010, 20198020, 40396040]

約数ペア:

[(1, 40396040), (2, 20198020), (4, 10099010), (5, 8079208), (8, 5049505), (10, 4039604), (20, 2019802), (40, 1009901)]