2019944560

素因数分解:

$2^4\times 5^1\times {\mathrm{25249307}}^1$

素因数の和:25249320

約数の個数: 20

約数和(自身を含む): 4696371288

約数和(自身を除く): 2676426728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25249307, 50498614, 100997228, 126246535, 201994456, 252493070, 403988912, 504986140, 1009972280, 2019944560]

約数ペア:

[(1, 2019944560), (2, 1009972280), (4, 504986140), (5, 403988912), (8, 252493070), (10, 201994456), (16, 126246535), (20, 100997228), (40, 50498614), (80, 25249307)]