20585560

素因数分解:

$2^3\times 5^1\times {\mathrm{514639}}^1$

素因数の和:514650

約数の個数: 16

約数和(自身を含む): 46317600

約数和(自身を除く): 25732040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 514639, 1029278, 2058556, 2573195, 4117112, 5146390, 10292780, 20585560]

約数ペア:

[(1, 20585560), (2, 10292780), (4, 5146390), (5, 4117112), (8, 2573195), (10, 2058556), (20, 1029278), (40, 514639)]