256489728

素因数分解:

$2^8\times 3^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{313}}^1$

素因数の和:440

約数の個数: 144

約数和(自身を含む): 754775616

約数和(自身を除く): 498285888

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 64, 66, 88, 96, 97, 128, 132, 176, 192, 194, 256, 264, 291, 313, 352, 384, 388, 528, 582, 626, 704, 768, 776, 939, 1056, 1067, 1164, 1252, 1408, 1552, 1878, 2112, 2134, 2328, 2504, 2816, 3104, 3201, 3443, 3756, 4224, 4268, 4656, 5008, 6208, 6402, 6886, 7512, 8448, 8536, 9312, 10016, 10329, 12416, 12804, 13772, 15024, 17072, 18624, 20032, 20658, 24832, 25608, 27544, 30048, 30361, 34144, 37248, 40064, 41316, 51216, 55088, 60096, 60722, 68288, 74496, 80128, 82632, 91083, 102432, 110176, 120192, 121444, 136576, 165264, 182166, 204864, 220352, 240384, 242888, 273152, 330528, 333971, 364332, 409728, 440704, 485776, 661056, 667942, 728664, 819456, 881408, 971552, 1001913, 1322112, 1335884, 1457328, 1943104, 2003826, 2644224, 2671768, 2914656, 3886208, 4007652, 5343536, 5829312, 7772416, 8015304, 10687072, 11658624, 16030608, 21374144, 23317248, 32061216, 42748288, 64122432, 85496576, 128244864, 256489728]

約数ペア:

[(1, 256489728), (2, 128244864), (3, 85496576), (4, 64122432), (6, 42748288), (8, 32061216), (11, 23317248), (12, 21374144), (16, 16030608), (22, 11658624), (24, 10687072), (32, 8015304), (33, 7772416), (44, 5829312), (48, 5343536), (64, 4007652), (66, 3886208), (88, 2914656), (96, 2671768), (97, 2644224), (128, 2003826), (132, 1943104), (176, 1457328), (192, 1335884), (194, 1322112), (256, 1001913), (264, 971552), (291, 881408), (313, 819456), (352, 728664), (384, 667942), (388, 661056), (528, 485776), (582, 440704), (626, 409728), (704, 364332), (768, 333971), (776, 330528), (939, 273152), (1056, 242888), (1067, 240384), (1164, 220352), (1252, 204864), (1408, 182166), (1552, 165264), (1878, 136576), (2112, 121444), (2134, 120192), (2328, 110176), (2504, 102432), (2816, 91083), (3104, 82632), (3201, 80128), (3443, 74496), (3756, 68288), (4224, 60722), (4268, 60096), (4656, 55088), (5008, 51216), (6208, 41316), (6402, 40064), (6886, 37248), (7512, 34144), (8448, 30361), (8536, 30048), (9312, 27544), (10016, 25608), (10329, 24832), (12416, 20658), (12804, 20032), (13772, 18624), (15024, 17072)]