257643358

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^2\times {\mathrm{269}}^1$

素因数の和:401

約数の個数: 48

約数和(自身を含む): 466132320

約数和(自身を除く): 208488962

約数列:

[1, 2, 7, 14, 37, 43, 74, 86, 259, 269, 301, 518, 538, 602, 1591, 1849, 1883, 3182, 3698, 3766, 9953, 11137, 11567, 12943, 19906, 22274, 23134, 25886, 68413, 69671, 80969, 136826, 139342, 161938, 427979, 478891, 497381, 855958, 957782, 994762, 2995853, 3481667, 5991706, 6963334, 18403097, 36806194, 128821679, 257643358]

約数ペア:

[(1, 257643358), (2, 128821679), (7, 36806194), (14, 18403097), (37, 6963334), (43, 5991706), (74, 3481667), (86, 2995853), (259, 994762), (269, 957782), (301, 855958), (518, 497381), (538, 478891), (602, 427979), (1591, 161938), (1849, 139342), (1883, 136826), (3182, 80969), (3698, 69671), (3766, 68413), (9953, 25886), (11137, 23134), (11567, 22274), (12943, 19906)]