20412760

素因数分解:

$2^3\times 5^1\times {\mathrm{510319}}^1$

素因数の和:510330

約数の個数: 16

約数和(自身を含む): 45928800

約数和(自身を除く): 25516040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 510319, 1020638, 2041276, 2551595, 4082552, 5103190, 10206380, 20412760]

約数ペア:

[(1, 20412760), (2, 10206380), (4, 5103190), (5, 4082552), (8, 2551595), (10, 2041276), (20, 1020638), (40, 510319)]