256585728

素因数分解:

$2^{12}\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:210

約数の個数: 208

約数和(自身を含む): 828273920

約数和(自身を除く): 571688192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 32, 38, 42, 48, 56, 57, 64, 76, 84, 96, 112, 114, 128, 133, 152, 157, 168, 192, 224, 228, 256, 266, 304, 314, 336, 384, 399, 448, 456, 471, 512, 532, 608, 628, 672, 768, 798, 896, 912, 942, 1024, 1064, 1099, 1216, 1256, 1344, 1536, 1596, 1792, 1824, 1884, 2048, 2128, 2198, 2432, 2512, 2688, 2983, 3072, 3192, 3297, 3584, 3648, 3768, 4096, 4256, 4396, 4864, 5024, 5376, 5966, 6144, 6384, 6594, 7168, 7296, 7536, 8512, 8792, 8949, 9728, 10048, 10752, 11932, 12288, 12768, 13188, 14336, 14592, 15072, 17024, 17584, 17898, 19456, 20096, 20881, 21504, 23864, 25536, 26376, 28672, 29184, 30144, 34048, 35168, 35796, 38912, 40192, 41762, 43008, 47728, 51072, 52752, 58368, 60288, 62643, 68096, 70336, 71592, 77824, 80384, 83524, 86016, 95456, 102144, 105504, 116736, 120576, 125286, 136192, 140672, 143184, 160768, 167048, 190912, 204288, 211008, 233472, 241152, 250572, 272384, 281344, 286368, 321536, 334096, 381824, 408576, 422016, 482304, 501144, 544768, 562688, 572736, 643072, 668192, 763648, 817152, 844032, 964608, 1002288, 1125376, 1145472, 1336384, 1527296, 1634304, 1688064, 1929216, 2004576, 2250752, 2290944, 2672768, 3054592, 3376128, 4009152, 4501504, 4581888, 5345536, 6109184, 6752256, 8018304, 9163776, 10691072, 12218368, 13504512, 16036608, 18327552, 21382144, 32073216, 36655104, 42764288, 64146432, 85528576, 128292864, 256585728]

約数ペア:

[(1, 256585728), (2, 128292864), (3, 85528576), (4, 64146432), (6, 42764288), (7, 36655104), (8, 32073216), (12, 21382144), (14, 18327552), (16, 16036608), (19, 13504512), (21, 12218368), (24, 10691072), (28, 9163776), (32, 8018304), (38, 6752256), (42, 6109184), (48, 5345536), (56, 4581888), (57, 4501504), (64, 4009152), (76, 3376128), (84, 3054592), (96, 2672768), (112, 2290944), (114, 2250752), (128, 2004576), (133, 1929216), (152, 1688064), (157, 1634304), (168, 1527296), (192, 1336384), (224, 1145472), (228, 1125376), (256, 1002288), (266, 964608), (304, 844032), (314, 817152), (336, 763648), (384, 668192), (399, 643072), (448, 572736), (456, 562688), (471, 544768), (512, 501144), (532, 482304), (608, 422016), (628, 408576), (672, 381824), (768, 334096), (798, 321536), (896, 286368), (912, 281344), (942, 272384), (1024, 250572), (1064, 241152), (1099, 233472), (1216, 211008), (1256, 204288), (1344, 190912), (1536, 167048), (1596, 160768), (1792, 143184), (1824, 140672), (1884, 136192), (2048, 125286), (2128, 120576), (2198, 116736), (2432, 105504), (2512, 102144), (2688, 95456), (2983, 86016), (3072, 83524), (3192, 80384), (3297, 77824), (3584, 71592), (3648, 70336), (3768, 68096), (4096, 62643), (4256, 60288), (4396, 58368), (4864, 52752), (5024, 51072), (5376, 47728), (5966, 43008), (6144, 41762), (6384, 40192), (6594, 38912), (7168, 35796), (7296, 35168), (7536, 34048), (8512, 30144), (8792, 29184), (8949, 28672), (9728, 26376), (10048, 25536), (10752, 23864), (11932, 21504), (12288, 20881), (12768, 20096), (13188, 19456), (14336, 17898), (14592, 17584), (15072, 17024)]