208077940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1486271}}^1$

素因数の和:1486287

約数の個数: 24

約数和(自身を含む): 499387392

約数和(自身を除く): 291309452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1486271, 2972542, 5945084, 7431355, 10403897, 14862710, 20807794, 29725420, 41615588, 52019485, 104038970, 208077940]

約数ペア:

[(1, 208077940), (2, 104038970), (4, 52019485), (5, 41615588), (7, 29725420), (10, 20807794), (14, 14862710), (20, 10403897), (28, 7431355), (35, 5945084), (70, 2972542), (140, 1486271)]