256571712

素因数分解:

$2^6\times 3^4\times {\mathrm{43}}^1\times {\mathrm{1151}}^1$

素因数の和:1218

約数の個数: 140

約数和(自身を含む): 778922496

約数和(自身を除く): 522350784

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 43, 48, 54, 64, 72, 81, 86, 96, 108, 129, 144, 162, 172, 192, 216, 258, 288, 324, 344, 387, 432, 516, 576, 648, 688, 774, 864, 1032, 1151, 1161, 1296, 1376, 1548, 1728, 2064, 2302, 2322, 2592, 2752, 3096, 3453, 3483, 4128, 4604, 4644, 5184, 6192, 6906, 6966, 8256, 9208, 9288, 10359, 12384, 13812, 13932, 18416, 18576, 20718, 24768, 27624, 27864, 31077, 36832, 37152, 41436, 49493, 55248, 55728, 62154, 73664, 74304, 82872, 93231, 98986, 110496, 111456, 124308, 148479, 165744, 186462, 197972, 220992, 222912, 248616, 296958, 331488, 372924, 395944, 445437, 497232, 593916, 662976, 745848, 791888, 890874, 994464, 1187832, 1336311, 1491696, 1583776, 1781748, 1988928, 2375664, 2672622, 2983392, 3167552, 3563496, 4008933, 4751328, 5345244, 5966784, 7126992, 8017866, 9502656, 10690488, 14253984, 16035732, 21380976, 28507968, 32071464, 42761952, 64142928, 85523904, 128285856, 256571712]

約数ペア:

[(1, 256571712), (2, 128285856), (3, 85523904), (4, 64142928), (6, 42761952), (8, 32071464), (9, 28507968), (12, 21380976), (16, 16035732), (18, 14253984), (24, 10690488), (27, 9502656), (32, 8017866), (36, 7126992), (43, 5966784), (48, 5345244), (54, 4751328), (64, 4008933), (72, 3563496), (81, 3167552), (86, 2983392), (96, 2672622), (108, 2375664), (129, 1988928), (144, 1781748), (162, 1583776), (172, 1491696), (192, 1336311), (216, 1187832), (258, 994464), (288, 890874), (324, 791888), (344, 745848), (387, 662976), (432, 593916), (516, 497232), (576, 445437), (648, 395944), (688, 372924), (774, 331488), (864, 296958), (1032, 248616), (1151, 222912), (1161, 220992), (1296, 197972), (1376, 186462), (1548, 165744), (1728, 148479), (2064, 124308), (2302, 111456), (2322, 110496), (2592, 98986), (2752, 93231), (3096, 82872), (3453, 74304), (3483, 73664), (4128, 62154), (4604, 55728), (4644, 55248), (5184, 49493), (6192, 41436), (6906, 37152), (6966, 36832), (8256, 31077), (9208, 27864), (9288, 27624), (10359, 24768), (12384, 20718), (13812, 18576), (13932, 18416)]