256241664

素因数分解:

$2^{12}\times 3^3\times 7^1\times {\mathrm{331}}^1$

素因数の和:371

約数の個数: 208

約数和(自身を含む): 870211840

約数和(自身を除く): 613970176

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 84, 96, 108, 112, 126, 128, 144, 168, 189, 192, 216, 224, 252, 256, 288, 331, 336, 378, 384, 432, 448, 504, 512, 576, 662, 672, 756, 768, 864, 896, 993, 1008, 1024, 1152, 1324, 1344, 1512, 1536, 1728, 1792, 1986, 2016, 2048, 2304, 2317, 2648, 2688, 2979, 3024, 3072, 3456, 3584, 3972, 4032, 4096, 4608, 4634, 5296, 5376, 5958, 6048, 6144, 6912, 6951, 7168, 7944, 8064, 8937, 9216, 9268, 10592, 10752, 11916, 12096, 12288, 13824, 13902, 14336, 15888, 16128, 17874, 18432, 18536, 20853, 21184, 21504, 23832, 24192, 27648, 27804, 28672, 31776, 32256, 35748, 36864, 37072, 41706, 42368, 43008, 47664, 48384, 55296, 55608, 62559, 63552, 64512, 71496, 74144, 83412, 84736, 86016, 95328, 96768, 110592, 111216, 125118, 127104, 129024, 142992, 148288, 166824, 169472, 190656, 193536, 222432, 250236, 254208, 258048, 285984, 296576, 333648, 338944, 381312, 387072, 444864, 500472, 508416, 571968, 593152, 667296, 677888, 762624, 774144, 889728, 1000944, 1016832, 1143936, 1186304, 1334592, 1355776, 1525248, 1779456, 2001888, 2033664, 2287872, 2372608, 2669184, 3050496, 3558912, 4003776, 4067328, 4575744, 4745216, 5338368, 6100992, 7117824, 8007552, 9151488, 9490432, 10676736, 12201984, 14235648, 16015104, 18302976, 21353472, 28471296, 32030208, 36605952, 42706944, 64060416, 85413888, 128120832, 256241664]

約数ペア:

[(1, 256241664), (2, 128120832), (3, 85413888), (4, 64060416), (6, 42706944), (7, 36605952), (8, 32030208), (9, 28471296), (12, 21353472), (14, 18302976), (16, 16015104), (18, 14235648), (21, 12201984), (24, 10676736), (27, 9490432), (28, 9151488), (32, 8007552), (36, 7117824), (42, 6100992), (48, 5338368), (54, 4745216), (56, 4575744), (63, 4067328), (64, 4003776), (72, 3558912), (84, 3050496), (96, 2669184), (108, 2372608), (112, 2287872), (126, 2033664), (128, 2001888), (144, 1779456), (168, 1525248), (189, 1355776), (192, 1334592), (216, 1186304), (224, 1143936), (252, 1016832), (256, 1000944), (288, 889728), (331, 774144), (336, 762624), (378, 677888), (384, 667296), (432, 593152), (448, 571968), (504, 508416), (512, 500472), (576, 444864), (662, 387072), (672, 381312), (756, 338944), (768, 333648), (864, 296576), (896, 285984), (993, 258048), (1008, 254208), (1024, 250236), (1152, 222432), (1324, 193536), (1344, 190656), (1512, 169472), (1536, 166824), (1728, 148288), (1792, 142992), (1986, 129024), (2016, 127104), (2048, 125118), (2304, 111216), (2317, 110592), (2648, 96768), (2688, 95328), (2979, 86016), (3024, 84736), (3072, 83412), (3456, 74144), (3584, 71496), (3972, 64512), (4032, 63552), (4096, 62559), (4608, 55608), (4634, 55296), (5296, 48384), (5376, 47664), (5958, 43008), (6048, 42368), (6144, 41706), (6912, 37072), (6951, 36864), (7168, 35748), (7944, 32256), (8064, 31776), (8937, 28672), (9216, 27804), (9268, 27648), (10592, 24192), (10752, 23832), (11916, 21504), (12096, 21184), (12288, 20853), (13824, 18536), (13902, 18432), (14336, 17874), (15888, 16128)]