20348180

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21647}}^1$

素因数の和:21703

約数の個数: 24

約数和(自身を含む): 43642368

約数和(自身を除く): 23294188

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 21647, 43294, 86588, 108235, 216470, 432940, 1017409, 2034818, 4069636, 5087045, 10174090, 20348180]

約数ペア:

[(1, 20348180), (2, 10174090), (4, 5087045), (5, 4069636), (10, 2034818), (20, 1017409), (47, 432940), (94, 216470), (188, 108235), (235, 86588), (470, 43294), (940, 21647)]