20321796760

素因数分解:

$2^3\times 5^1\times {\mathrm{508044919}}^1$

素因数の和:508044930

約数の個数: 16

約数和(自身を含む): 45724042800

約数和(自身を除く): 25402246040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 508044919, 1016089838, 2032179676, 2540224595, 4064359352, 5080449190, 10160898380, 20321796760]

約数ペア:

[(1, 20321796760), (2, 10160898380), (4, 5080449190), (5, 4064359352), (8, 2540224595), (10, 2032179676), (20, 1016089838), (40, 508044919)]