209904310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{272603}}^1$

素因数の和:272628

約数の個数: 32

約数和(自身を含む): 471059712

約数和(自身を除く): 261155402

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 272603, 545206, 1363015, 1908221, 2726030, 2998633, 3816442, 5997266, 9541105, 14993165, 19082210, 20990431, 29986330, 41980862, 104952155, 209904310]

約数ペア:

[(1, 209904310), (2, 104952155), (5, 41980862), (7, 29986330), (10, 20990431), (11, 19082210), (14, 14993165), (22, 9541105), (35, 5997266), (55, 3816442), (70, 2998633), (77, 2726030), (110, 1908221), (154, 1363015), (385, 545206), (770, 272603)]