278103694

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1\times {\mathrm{457}}^1$

素因数の和:808

約数の個数: 32

約数和(自身を含む): 461664000

約数和(自身を除く): 183560306

約数列:

[1, 2, 11, 22, 139, 199, 278, 398, 457, 914, 1529, 2189, 3058, 4378, 5027, 10054, 27661, 55322, 63523, 90943, 127046, 181886, 304271, 608542, 698753, 1000373, 1397506, 2000746, 12641077, 25282154, 139051847, 278103694]

約数ペア:

[(1, 278103694), (2, 139051847), (11, 25282154), (22, 12641077), (139, 2000746), (199, 1397506), (278, 1000373), (398, 698753), (457, 608542), (914, 304271), (1529, 181886), (2189, 127046), (3058, 90943), (4378, 63523), (5027, 55322), (10054, 27661)]