257705450

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{1789}}^1$

素因数の和:1911

約数の個数: 48

約数和(自身を含む): 498078240

約数和(自身を除く): 240372790

約数列:

[1, 2, 5, 10, 25, 43, 50, 67, 86, 134, 215, 335, 430, 670, 1075, 1675, 1789, 2150, 2881, 3350, 3578, 5762, 8945, 14405, 17890, 28810, 44725, 72025, 76927, 89450, 119863, 144050, 153854, 239726, 384635, 599315, 769270, 1198630, 1923175, 2996575, 3846350, 5154109, 5993150, 10308218, 25770545, 51541090, 128852725, 257705450]

約数ペア:

[(1, 257705450), (2, 128852725), (5, 51541090), (10, 25770545), (25, 10308218), (43, 5993150), (50, 5154109), (67, 3846350), (86, 2996575), (134, 1923175), (215, 1198630), (335, 769270), (430, 599315), (670, 384635), (1075, 239726), (1675, 153854), (1789, 144050), (2150, 119863), (2881, 89450), (3350, 76927), (3578, 72025), (5762, 44725), (8945, 28810), (14405, 17890)]