278947966

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{1979}}^1$

素因数の和:2184

約数の個数: 32

約数和(自身を含む): 470448000

約数和(自身を除く): 191500034

約数列:

[1, 2, 11, 22, 43, 86, 149, 298, 473, 946, 1639, 1979, 3278, 3958, 6407, 12814, 21769, 43538, 70477, 85097, 140954, 170194, 294871, 589742, 936067, 1872134, 3243581, 6487162, 12679453, 25358906, 139473983, 278947966]

約数ペア:

[(1, 278947966), (2, 139473983), (11, 25358906), (22, 12679453), (43, 6487162), (86, 3243581), (149, 1872134), (298, 936067), (473, 589742), (946, 294871), (1639, 170194), (1979, 140954), (3278, 85097), (3958, 70477), (6407, 43538), (12814, 21769)]