256919936

素因数分解:

$2^7\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:201

約数の個数: 192

約数和(自身を含む): 673958880

約数和(自身を除く): 417038944

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 32, 46, 49, 52, 56, 64, 91, 92, 98, 104, 112, 128, 137, 161, 182, 184, 196, 208, 224, 274, 299, 322, 364, 368, 392, 416, 448, 548, 598, 637, 644, 728, 736, 784, 832, 896, 959, 1096, 1127, 1196, 1274, 1288, 1456, 1472, 1568, 1664, 1781, 1918, 2093, 2192, 2254, 2392, 2548, 2576, 2912, 2944, 3136, 3151, 3562, 3836, 4186, 4384, 4508, 4784, 5096, 5152, 5824, 6272, 6302, 6713, 7124, 7672, 8372, 8768, 9016, 9568, 10192, 10304, 11648, 12467, 12604, 13426, 14248, 14651, 15344, 16744, 17536, 18032, 19136, 20384, 20608, 22057, 24934, 25208, 26852, 28496, 29302, 30688, 33488, 36064, 38272, 40768, 40963, 44114, 49868, 50416, 53704, 56992, 58604, 61376, 66976, 72128, 81536, 81926, 87269, 88228, 99736, 100832, 107408, 113984, 117208, 122752, 133952, 144256, 154399, 163852, 174538, 176456, 199472, 201664, 214816, 227968, 234416, 267904, 286741, 308798, 327704, 349076, 352912, 398944, 403328, 429632, 468832, 573482, 617596, 655408, 698152, 705824, 797888, 859264, 937664, 1146964, 1235192, 1310816, 1396304, 1411648, 1595776, 1875328, 2007187, 2293928, 2470384, 2621632, 2792608, 2823296, 4014374, 4587856, 4940768, 5243264, 5585216, 8028748, 9175712, 9881536, 11170432, 16057496, 18351424, 19763072, 32114992, 36702848, 64229984, 128459968, 256919936]

約数ペア:

[(1, 256919936), (2, 128459968), (4, 64229984), (7, 36702848), (8, 32114992), (13, 19763072), (14, 18351424), (16, 16057496), (23, 11170432), (26, 9881536), (28, 9175712), (32, 8028748), (46, 5585216), (49, 5243264), (52, 4940768), (56, 4587856), (64, 4014374), (91, 2823296), (92, 2792608), (98, 2621632), (104, 2470384), (112, 2293928), (128, 2007187), (137, 1875328), (161, 1595776), (182, 1411648), (184, 1396304), (196, 1310816), (208, 1235192), (224, 1146964), (274, 937664), (299, 859264), (322, 797888), (364, 705824), (368, 698152), (392, 655408), (416, 617596), (448, 573482), (548, 468832), (598, 429632), (637, 403328), (644, 398944), (728, 352912), (736, 349076), (784, 327704), (832, 308798), (896, 286741), (959, 267904), (1096, 234416), (1127, 227968), (1196, 214816), (1274, 201664), (1288, 199472), (1456, 176456), (1472, 174538), (1568, 163852), (1664, 154399), (1781, 144256), (1918, 133952), (2093, 122752), (2192, 117208), (2254, 113984), (2392, 107408), (2548, 100832), (2576, 99736), (2912, 88228), (2944, 87269), (3136, 81926), (3151, 81536), (3562, 72128), (3836, 66976), (4186, 61376), (4384, 58604), (4508, 56992), (4784, 53704), (5096, 50416), (5152, 49868), (5824, 44114), (6272, 40963), (6302, 40768), (6713, 38272), (7124, 36064), (7672, 33488), (8372, 30688), (8768, 29302), (9016, 28496), (9568, 26852), (10192, 25208), (10304, 24934), (11648, 22057), (12467, 20608), (12604, 20384), (13426, 19136), (14248, 18032), (14651, 17536), (15344, 16744)]