257811456

素因数分解:

$2^{10}\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{631}}^1$

素因数の和:680

約数の個数: 176

約数和(自身を含む): 827970560

約数和(自身を除く): 570159104

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, 168, 192, 224, 228, 256, 266, 304, 336, 384, 399, 448, 456, 512, 532, 608, 631, 672, 768, 798, 896, 912, 1024, 1064, 1216, 1262, 1344, 1536, 1596, 1792, 1824, 1893, 2128, 2432, 2524, 2688, 3072, 3192, 3584, 3648, 3786, 4256, 4417, 4864, 5048, 5376, 6384, 7168, 7296, 7572, 8512, 8834, 9728, 10096, 10752, 11989, 12768, 13251, 14592, 15144, 17024, 17668, 19456, 20192, 21504, 23978, 25536, 26502, 29184, 30288, 34048, 35336, 35967, 40384, 47956, 51072, 53004, 58368, 60576, 68096, 70672, 71934, 80768, 83923, 95912, 102144, 106008, 121152, 136192, 141344, 143868, 161536, 167846, 191824, 204288, 212016, 242304, 251769, 282688, 287736, 323072, 335692, 383648, 408576, 424032, 484608, 503538, 565376, 575472, 646144, 671384, 767296, 848064, 969216, 1007076, 1130752, 1150944, 1342768, 1534592, 1696128, 1938432, 2014152, 2261504, 2301888, 2685536, 3069184, 3392256, 4028304, 4523008, 4603776, 5371072, 6138368, 6784512, 8056608, 9207552, 10742144, 12276736, 13569024, 16113216, 18415104, 21484288, 32226432, 36830208, 42968576, 64452864, 85937152, 128905728, 257811456]

約数ペア:

[(1, 257811456), (2, 128905728), (3, 85937152), (4, 64452864), (6, 42968576), (7, 36830208), (8, 32226432), (12, 21484288), (14, 18415104), (16, 16113216), (19, 13569024), (21, 12276736), (24, 10742144), (28, 9207552), (32, 8056608), (38, 6784512), (42, 6138368), (48, 5371072), (56, 4603776), (57, 4523008), (64, 4028304), (76, 3392256), (84, 3069184), (96, 2685536), (112, 2301888), (114, 2261504), (128, 2014152), (133, 1938432), (152, 1696128), (168, 1534592), (192, 1342768), (224, 1150944), (228, 1130752), (256, 1007076), (266, 969216), (304, 848064), (336, 767296), (384, 671384), (399, 646144), (448, 575472), (456, 565376), (512, 503538), (532, 484608), (608, 424032), (631, 408576), (672, 383648), (768, 335692), (798, 323072), (896, 287736), (912, 282688), (1024, 251769), (1064, 242304), (1216, 212016), (1262, 204288), (1344, 191824), (1536, 167846), (1596, 161536), (1792, 143868), (1824, 141344), (1893, 136192), (2128, 121152), (2432, 106008), (2524, 102144), (2688, 95912), (3072, 83923), (3192, 80768), (3584, 71934), (3648, 70672), (3786, 68096), (4256, 60576), (4417, 58368), (4864, 53004), (5048, 51072), (5376, 47956), (6384, 40384), (7168, 35967), (7296, 35336), (7572, 34048), (8512, 30288), (8834, 29184), (9728, 26502), (10096, 25536), (10752, 23978), (11989, 21504), (12768, 20192), (13251, 19456), (14592, 17668), (15144, 17024)]