19910080

素因数分解:

$2^6\times 5^1\times {\mathrm{62219}}^1$

素因数の和:62236

約数の個数: 28

約数和(自身を含む): 47411640

約数和(自身を除く): 27501560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 62219, 124438, 248876, 311095, 497752, 622190, 995504, 1244380, 1991008, 2488760, 3982016, 4977520, 9955040, 19910080]

約数ペア:

[(1, 19910080), (2, 9955040), (4, 4977520), (5, 3982016), (8, 2488760), (10, 1991008), (16, 1244380), (20, 995504), (32, 622190), (40, 497752), (64, 311095), (80, 248876), (160, 124438), (320, 62219)]