256445280

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:163

約数の個数: 576

約数和(自身を含む): 1144765440

約数和(自身を除く): 888320160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 19, 20, 21, 24, 26, 28, 30, 32, 35, 36, 38, 39, 40, 42, 45, 48, 52, 56, 57, 60, 63, 65, 70, 72, 76, 78, 80, 84, 90, 91, 95, 96, 103, 104, 105, 112, 114, 117, 120, 126, 130, 133, 140, 144, 152, 156, 160, 168, 171, 180, 182, 190, 195, 206, 208, 210, 224, 228, 234, 240, 247, 252, 260, 266, 273, 280, 285, 288, 304, 309, 312, 315, 336, 342, 360, 364, 380, 390, 399, 412, 416, 420, 455, 456, 468, 480, 494, 504, 515, 520, 532, 546, 560, 570, 585, 608, 618, 624, 630, 665, 672, 684, 720, 721, 728, 741, 760, 780, 798, 819, 824, 840, 855, 910, 912, 927, 936, 988, 1008, 1030, 1040, 1064, 1092, 1120, 1140, 1170, 1197, 1235, 1236, 1248, 1260, 1330, 1339, 1365, 1368, 1440, 1442, 1456, 1482, 1520, 1545, 1560, 1596, 1638, 1648, 1680, 1710, 1729, 1820, 1824, 1854, 1872, 1957, 1976, 1995, 2016, 2060, 2080, 2128, 2163, 2184, 2223, 2280, 2340, 2394, 2470, 2472, 2520, 2660, 2678, 2730, 2736, 2884, 2912, 2964, 3040, 3090, 3120, 3192, 3276, 3296, 3360, 3420, 3458, 3605, 3640, 3705, 3708, 3744, 3914, 3952, 3990, 4017, 4095, 4120, 4256, 4326, 4368, 4446, 4560, 4635, 4680, 4788, 4940, 4944, 5040, 5187, 5320, 5356, 5460, 5472, 5768, 5871, 5928, 5985, 6180, 6240, 6384, 6489, 6552, 6695, 6840, 6916, 7210, 7280, 7410, 7416, 7828, 7904, 7980, 8034, 8190, 8240, 8645, 8652, 8736, 8892, 9120, 9270, 9360, 9373, 9576, 9785, 9880, 9888, 10080, 10374, 10640, 10712, 10815, 10920, 11115, 11536, 11742, 11856, 11970, 12051, 12360, 12768, 12978, 13104, 13390, 13680, 13699, 13832, 14420, 14560, 14820, 14832, 15561, 15656, 15960, 16068, 16380, 16480, 17290, 17304, 17613, 17784, 18540, 18720, 18746, 19152, 19570, 19760, 20085, 20748, 21280, 21424, 21630, 21840, 22230, 23072, 23484, 23712, 23940, 24102, 24720, 25441, 25935, 25956, 26208, 26780, 27360, 27398, 27664, 28119, 28840, 29355, 29640, 29664, 31122, 31312, 31920, 32136, 32445, 32760, 34580, 34608, 35226, 35568, 37080, 37492, 38304, 39140, 39520, 40170, 41097, 41496, 42848, 43260, 43680, 44460, 46865, 46968, 47880, 48204, 49440, 50882, 51870, 51912, 53560, 54796, 55328, 56238, 57680, 58710, 59280, 60255, 62244, 62624, 63840, 64272, 64890, 65520, 68495, 69160, 69216, 70452, 71136, 74160, 74984, 76323, 77805, 78280, 80340, 82194, 82992, 84357, 86520, 88065, 88920, 93730, 93936, 95760, 96408, 101764, 103740, 103824, 107120, 109592, 112476, 115360, 117420, 118560, 120510, 123291, 124488, 127205, 128544, 129780, 131040, 136990, 138320, 140595, 140904, 148320, 149968, 152646, 155610, 156560, 160680, 164388, 165984, 168714, 173040, 176130, 177840, 178087, 187460, 187872, 191520, 192816, 203528, 205485, 207480, 207648, 214240, 219184, 224952, 228969, 234840, 241020, 246582, 248976, 254410, 259560, 273980, 276640, 281190, 281808, 299936, 305292, 311220, 313120, 321360, 328776, 337428, 346080, 352260, 355680, 356174, 374920, 381615, 385632, 407056, 410970, 414960, 421785, 438368, 449904, 457938, 469680, 482040, 493164, 497952, 508820, 519120, 534261, 547960, 562380, 563616, 610584, 616455, 622440, 642720, 657552, 674856, 704520, 712348, 749840, 763230, 814112, 821940, 829920, 843570, 890435, 899808, 915876, 939360, 964080, 986328, 1017640, 1038240, 1068522, 1095920, 1124760, 1144845, 1221168, 1232910, 1244880, 1315104, 1349712, 1409040, 1424696, 1499680, 1526460, 1602783, 1643880, 1687140, 1780870, 1831752, 1928160, 1972656, 2035280, 2137044, 2191840, 2249520, 2289690, 2442336, 2465820, 2489760, 2671305, 2699424, 2818080, 2849392, 3052920, 3205566, 3287760, 3374280, 3561740, 3663504, 3945312, 4070560, 4274088, 4499040, 4579380, 4931640, 5342610, 5698784, 6105840, 6411132, 6575520, 6748560, 7123480, 7327008, 8013915, 8548176, 9158760, 9863280, 10685220, 12211680, 12822264, 13497120, 14246960, 16027830, 17096352, 18317520, 19726560, 21370440, 25644528, 28493920, 32055660, 36635040, 42740880, 51289056, 64111320, 85481760, 128222640, 256445280]

約数ペア:

[(1, 256445280), (2, 128222640), (3, 85481760), (4, 64111320), (5, 51289056), (6, 42740880), (7, 36635040), (8, 32055660), (9, 28493920), (10, 25644528), (12, 21370440), (13, 19726560), (14, 18317520), (15, 17096352), (16, 16027830), (18, 14246960), (19, 13497120), (20, 12822264), (21, 12211680), (24, 10685220), (26, 9863280), (28, 9158760), (30, 8548176), (32, 8013915), (35, 7327008), (36, 7123480), (38, 6748560), (39, 6575520), (40, 6411132), (42, 6105840), (45, 5698784), (48, 5342610), (52, 4931640), (56, 4579380), (57, 4499040), (60, 4274088), (63, 4070560), (65, 3945312), (70, 3663504), (72, 3561740), (76, 3374280), (78, 3287760), (80, 3205566), (84, 3052920), (90, 2849392), (91, 2818080), (95, 2699424), (96, 2671305), (103, 2489760), (104, 2465820), (105, 2442336), (112, 2289690), (114, 2249520), (117, 2191840), (120, 2137044), (126, 2035280), (130, 1972656), (133, 1928160), (140, 1831752), (144, 1780870), (152, 1687140), (156, 1643880), (160, 1602783), (168, 1526460), (171, 1499680), (180, 1424696), (182, 1409040), (190, 1349712), (195, 1315104), (206, 1244880), (208, 1232910), (210, 1221168), (224, 1144845), (228, 1124760), (234, 1095920), (240, 1068522), (247, 1038240), (252, 1017640), (260, 986328), (266, 964080), (273, 939360), (280, 915876), (285, 899808), (288, 890435), (304, 843570), (309, 829920), (312, 821940), (315, 814112), (336, 763230), (342, 749840), (360, 712348), (364, 704520), (380, 674856), (390, 657552), (399, 642720), (412, 622440), (416, 616455), (420, 610584), (455, 563616), (456, 562380), (468, 547960), (480, 534261), (494, 519120), (504, 508820), (515, 497952), (520, 493164), (532, 482040), (546, 469680), (560, 457938), (570, 449904), (585, 438368), (608, 421785), (618, 414960), (624, 410970), (630, 407056), (665, 385632), (672, 381615), (684, 374920), (720, 356174), (721, 355680), (728, 352260), (741, 346080), (760, 337428), (780, 328776), (798, 321360), (819, 313120), (824, 311220), (840, 305292), (855, 299936), (910, 281808), (912, 281190), (927, 276640), (936, 273980), (988, 259560), (1008, 254410), (1030, 248976), (1040, 246582), (1064, 241020), (1092, 234840), (1120, 228969), (1140, 224952), (1170, 219184), (1197, 214240), (1235, 207648), (1236, 207480), (1248, 205485), (1260, 203528), (1330, 192816), (1339, 191520), (1365, 187872), (1368, 187460), (1440, 178087), (1442, 177840), (1456, 176130), (1482, 173040), (1520, 168714), (1545, 165984), (1560, 164388), (1596, 160680), (1638, 156560), (1648, 155610), (1680, 152646), (1710, 149968), (1729, 148320), (1820, 140904), (1824, 140595), (1854, 138320), (1872, 136990), (1957, 131040), (1976, 129780), (1995, 128544), (2016, 127205), (2060, 124488), (2080, 123291), (2128, 120510), (2163, 118560), (2184, 117420), (2223, 115360), (2280, 112476), (2340, 109592), (2394, 107120), (2470, 103824), (2472, 103740), (2520, 101764), (2660, 96408), (2678, 95760), (2730, 93936), (2736, 93730), (2884, 88920), (2912, 88065), (2964, 86520), (3040, 84357), (3090, 82992), (3120, 82194), (3192, 80340), (3276, 78280), (3296, 77805), (3360, 76323), (3420, 74984), (3458, 74160), (3605, 71136), (3640, 70452), (3705, 69216), (3708, 69160), (3744, 68495), (3914, 65520), (3952, 64890), (3990, 64272), (4017, 63840), (4095, 62624), (4120, 62244), (4256, 60255), (4326, 59280), (4368, 58710), (4446, 57680), (4560, 56238), (4635, 55328), (4680, 54796), (4788, 53560), (4940, 51912), (4944, 51870), (5040, 50882), (5187, 49440), (5320, 48204), (5356, 47880), (5460, 46968), (5472, 46865), (5768, 44460), (5871, 43680), (5928, 43260), (5985, 42848), (6180, 41496), (6240, 41097), (6384, 40170), (6489, 39520), (6552, 39140), (6695, 38304), (6840, 37492), (6916, 37080), (7210, 35568), (7280, 35226), (7410, 34608), (7416, 34580), (7828, 32760), (7904, 32445), (7980, 32136), (8034, 31920), (8190, 31312), (8240, 31122), (8645, 29664), (8652, 29640), (8736, 29355), (8892, 28840), (9120, 28119), (9270, 27664), (9360, 27398), (9373, 27360), (9576, 26780), (9785, 26208), (9880, 25956), (9888, 25935), (10080, 25441), (10374, 24720), (10640, 24102), (10712, 23940), (10815, 23712), (10920, 23484), (11115, 23072), (11536, 22230), (11742, 21840), (11856, 21630), (11970, 21424), (12051, 21280), (12360, 20748), (12768, 20085), (12978, 19760), (13104, 19570), (13390, 19152), (13680, 18746), (13699, 18720), (13832, 18540), (14420, 17784), (14560, 17613), (14820, 17304), (14832, 17290), (15561, 16480), (15656, 16380), (15960, 16068)]