20217040

素因数分解:

$2^4\times 5^1\times {\mathrm{252713}}^1$

素因数の和:252726

約数の個数: 20

約数和(自身を含む): 47004804

約数和(自身を除く): 26787764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252713, 505426, 1010852, 1263565, 2021704, 2527130, 4043408, 5054260, 10108520, 20217040]

約数ペア:

[(1, 20217040), (2, 10108520), (4, 5054260), (5, 4043408), (8, 2527130), (10, 2021704), (16, 1263565), (20, 1010852), (40, 505426), (80, 252713)]