256460256

素因数分解:

$2^5\times 3^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:140

約数の個数: 288

約数和(自身を含む): 847566720

約数和(自身を除く): 591106464

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 43, 48, 52, 54, 59, 72, 78, 81, 86, 96, 104, 108, 117, 118, 129, 144, 156, 162, 172, 177, 208, 216, 234, 236, 243, 258, 288, 312, 324, 344, 351, 354, 387, 416, 432, 468, 472, 486, 516, 531, 559, 624, 648, 688, 702, 708, 767, 774, 864, 936, 944, 972, 1032, 1053, 1062, 1118, 1161, 1248, 1296, 1376, 1404, 1416, 1534, 1548, 1593, 1677, 1872, 1888, 1944, 2064, 2106, 2124, 2236, 2301, 2322, 2537, 2592, 2808, 2832, 3068, 3096, 3159, 3186, 3354, 3483, 3744, 3888, 4128, 4212, 4248, 4472, 4602, 4644, 4779, 5031, 5074, 5616, 5664, 6136, 6192, 6318, 6372, 6708, 6903, 6966, 7611, 7776, 8424, 8496, 8944, 9204, 9288, 9558, 10062, 10148, 10449, 11232, 12272, 12384, 12636, 12744, 13416, 13806, 13932, 14337, 15093, 15222, 16848, 16992, 17888, 18408, 18576, 19116, 20124, 20296, 20709, 20898, 22833, 24544, 25272, 25488, 26832, 27612, 27864, 28674, 30186, 30444, 32981, 33696, 36816, 37152, 38232, 40248, 40592, 41418, 41796, 45279, 45666, 50544, 50976, 53664, 55224, 55728, 57348, 60372, 60888, 62127, 65962, 68499, 73632, 76464, 80496, 81184, 82836, 83592, 90558, 91332, 98943, 101088, 110448, 111456, 114696, 120744, 121776, 124254, 131924, 135837, 136998, 152928, 160992, 165672, 167184, 181116, 182664, 186381, 197886, 205497, 220896, 229392, 241488, 243552, 248508, 263848, 271674, 273996, 296829, 331344, 334368, 362232, 365328, 372762, 395772, 410994, 458784, 482976, 497016, 527696, 543348, 547992, 593658, 616491, 662688, 724464, 730656, 745524, 791544, 821988, 890487, 994032, 1055392, 1086696, 1095984, 1187316, 1232982, 1448928, 1491048, 1583088, 1643976, 1780974, 1988064, 2173392, 2191968, 2374632, 2465964, 2671461, 2982096, 3166176, 3287952, 3561948, 4346784, 4749264, 4931928, 5342922, 5964192, 6575904, 7123896, 8014383, 9498528, 9863856, 10685844, 14247792, 16028766, 19727712, 21371688, 28495584, 32057532, 42743376, 64115064, 85486752, 128230128, 256460256]

約数ペア:

[(1, 256460256), (2, 128230128), (3, 85486752), (4, 64115064), (6, 42743376), (8, 32057532), (9, 28495584), (12, 21371688), (13, 19727712), (16, 16028766), (18, 14247792), (24, 10685844), (26, 9863856), (27, 9498528), (32, 8014383), (36, 7123896), (39, 6575904), (43, 5964192), (48, 5342922), (52, 4931928), (54, 4749264), (59, 4346784), (72, 3561948), (78, 3287952), (81, 3166176), (86, 2982096), (96, 2671461), (104, 2465964), (108, 2374632), (117, 2191968), (118, 2173392), (129, 1988064), (144, 1780974), (156, 1643976), (162, 1583088), (172, 1491048), (177, 1448928), (208, 1232982), (216, 1187316), (234, 1095984), (236, 1086696), (243, 1055392), (258, 994032), (288, 890487), (312, 821988), (324, 791544), (344, 745524), (351, 730656), (354, 724464), (387, 662688), (416, 616491), (432, 593658), (468, 547992), (472, 543348), (486, 527696), (516, 497016), (531, 482976), (559, 458784), (624, 410994), (648, 395772), (688, 372762), (702, 365328), (708, 362232), (767, 334368), (774, 331344), (864, 296829), (936, 273996), (944, 271674), (972, 263848), (1032, 248508), (1053, 243552), (1062, 241488), (1118, 229392), (1161, 220896), (1248, 205497), (1296, 197886), (1376, 186381), (1404, 182664), (1416, 181116), (1534, 167184), (1548, 165672), (1593, 160992), (1677, 152928), (1872, 136998), (1888, 135837), (1944, 131924), (2064, 124254), (2106, 121776), (2124, 120744), (2236, 114696), (2301, 111456), (2322, 110448), (2537, 101088), (2592, 98943), (2808, 91332), (2832, 90558), (3068, 83592), (3096, 82836), (3159, 81184), (3186, 80496), (3354, 76464), (3483, 73632), (3744, 68499), (3888, 65962), (4128, 62127), (4212, 60888), (4248, 60372), (4472, 57348), (4602, 55728), (4644, 55224), (4779, 53664), (5031, 50976), (5074, 50544), (5616, 45666), (5664, 45279), (6136, 41796), (6192, 41418), (6318, 40592), (6372, 40248), (6708, 38232), (6903, 37152), (6966, 36816), (7611, 33696), (7776, 32981), (8424, 30444), (8496, 30186), (8944, 28674), (9204, 27864), (9288, 27612), (9558, 26832), (10062, 25488), (10148, 25272), (10449, 24544), (11232, 22833), (12272, 20898), (12384, 20709), (12636, 20296), (12744, 20124), (13416, 19116), (13806, 18576), (13932, 18408), (14337, 17888), (15093, 16992), (15222, 16848)]