257239674

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:304

約数の個数: 96

約数和(自身を含む): 600956928

約数和(自身を除く): 343717254

約数列:

[1, 2, 3, 6, 9, 18, 31, 43, 62, 71, 86, 93, 129, 142, 151, 186, 213, 258, 279, 302, 387, 426, 453, 558, 639, 774, 906, 1278, 1333, 1359, 2201, 2666, 2718, 3053, 3999, 4402, 4681, 6106, 6493, 6603, 7998, 9159, 9362, 10721, 11997, 12986, 13206, 14043, 18318, 19479, 19809, 21442, 23994, 27477, 28086, 32163, 38958, 39618, 42129, 54954, 58437, 64326, 84258, 94643, 96489, 116874, 189286, 192978, 201283, 283929, 332351, 402566, 461003, 567858, 603849, 664702, 851787, 922006, 997053, 1207698, 1383009, 1703574, 1811547, 1994106, 2766018, 2991159, 3623094, 4149027, 5982318, 8298054, 14291093, 28582186, 42873279, 85746558, 128619837, 257239674]

約数ペア:

[(1, 257239674), (2, 128619837), (3, 85746558), (6, 42873279), (9, 28582186), (18, 14291093), (31, 8298054), (43, 5982318), (62, 4149027), (71, 3623094), (86, 2991159), (93, 2766018), (129, 1994106), (142, 1811547), (151, 1703574), (186, 1383009), (213, 1207698), (258, 997053), (279, 922006), (302, 851787), (387, 664702), (426, 603849), (453, 567858), (558, 461003), (639, 402566), (774, 332351), (906, 283929), (1278, 201283), (1333, 192978), (1359, 189286), (2201, 116874), (2666, 96489), (2718, 94643), (3053, 84258), (3999, 64326), (4402, 58437), (4681, 54954), (6106, 42129), (6493, 39618), (6603, 38958), (7998, 32163), (9159, 28086), (9362, 27477), (10721, 23994), (11997, 21442), (12986, 19809), (13206, 19479), (14043, 18318)]