256359168

素因数分解:

$2^8\times 3^5\times {\mathrm{13}}^1\times {\mathrm{317}}^1$

素因数の和:361

約数の個数: 216

約数和(自身を含む): 828089808

約数和(自身を除く): 571730640

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 64, 72, 78, 81, 96, 104, 108, 117, 128, 144, 156, 162, 192, 208, 216, 234, 243, 256, 288, 312, 317, 324, 351, 384, 416, 432, 468, 486, 576, 624, 634, 648, 702, 768, 832, 864, 936, 951, 972, 1053, 1152, 1248, 1268, 1296, 1404, 1664, 1728, 1872, 1902, 1944, 2106, 2304, 2496, 2536, 2592, 2808, 2853, 3159, 3328, 3456, 3744, 3804, 3888, 4121, 4212, 4992, 5072, 5184, 5616, 5706, 6318, 6912, 7488, 7608, 7776, 8242, 8424, 8559, 9984, 10144, 10368, 11232, 11412, 12363, 12636, 14976, 15216, 15552, 16484, 16848, 17118, 20288, 20736, 22464, 22824, 24726, 25272, 25677, 29952, 30432, 31104, 32968, 33696, 34236, 37089, 40576, 44928, 45648, 49452, 50544, 51354, 60864, 62208, 65936, 67392, 68472, 74178, 77031, 81152, 89856, 91296, 98904, 101088, 102708, 111267, 121728, 131872, 134784, 136944, 148356, 154062, 182592, 197808, 202176, 205416, 222534, 243456, 263744, 269568, 273888, 296712, 308124, 333801, 365184, 395616, 404352, 410832, 445068, 527488, 547776, 593424, 616248, 667602, 730368, 791232, 808704, 821664, 890136, 1001403, 1054976, 1095552, 1186848, 1232496, 1335204, 1582464, 1643328, 1780272, 2002806, 2191104, 2373696, 2464992, 2670408, 3164928, 3286656, 3560544, 4005612, 4747392, 4929984, 5340816, 6573312, 7121088, 8011224, 9494784, 9859968, 10681632, 14242176, 16022448, 19719936, 21363264, 28484352, 32044896, 42726528, 64089792, 85453056, 128179584, 256359168]

約数ペア:

[(1, 256359168), (2, 128179584), (3, 85453056), (4, 64089792), (6, 42726528), (8, 32044896), (9, 28484352), (12, 21363264), (13, 19719936), (16, 16022448), (18, 14242176), (24, 10681632), (26, 9859968), (27, 9494784), (32, 8011224), (36, 7121088), (39, 6573312), (48, 5340816), (52, 4929984), (54, 4747392), (64, 4005612), (72, 3560544), (78, 3286656), (81, 3164928), (96, 2670408), (104, 2464992), (108, 2373696), (117, 2191104), (128, 2002806), (144, 1780272), (156, 1643328), (162, 1582464), (192, 1335204), (208, 1232496), (216, 1186848), (234, 1095552), (243, 1054976), (256, 1001403), (288, 890136), (312, 821664), (317, 808704), (324, 791232), (351, 730368), (384, 667602), (416, 616248), (432, 593424), (468, 547776), (486, 527488), (576, 445068), (624, 410832), (634, 404352), (648, 395616), (702, 365184), (768, 333801), (832, 308124), (864, 296712), (936, 273888), (951, 269568), (972, 263744), (1053, 243456), (1152, 222534), (1248, 205416), (1268, 202176), (1296, 197808), (1404, 182592), (1664, 154062), (1728, 148356), (1872, 136944), (1902, 134784), (1944, 131872), (2106, 121728), (2304, 111267), (2496, 102708), (2536, 101088), (2592, 98904), (2808, 91296), (2853, 89856), (3159, 81152), (3328, 77031), (3456, 74178), (3744, 68472), (3804, 67392), (3888, 65936), (4121, 62208), (4212, 60864), (4992, 51354), (5072, 50544), (5184, 49452), (5616, 45648), (5706, 44928), (6318, 40576), (6912, 37089), (7488, 34236), (7608, 33696), (7776, 32968), (8242, 31104), (8424, 30432), (8559, 29952), (9984, 25677), (10144, 25272), (10368, 24726), (11232, 22824), (11412, 22464), (12363, 20736), (12636, 20288), (14976, 17118), (15216, 16848), (15552, 16484)]