1278484480

素因数分解:

$2^{13}\times 5^1\times 7^4\times {\mathrm{13}}^1$

素因数の和:72

約数の個数: 280

約数和(自身を含む): 3854657772

約数和(自身を除く): 2576173292

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 64, 65, 70, 80, 91, 98, 104, 112, 128, 130, 140, 160, 182, 196, 208, 224, 245, 256, 260, 280, 320, 343, 364, 392, 416, 448, 455, 490, 512, 520, 560, 637, 640, 686, 728, 784, 832, 896, 910, 980, 1024, 1040, 1120, 1274, 1280, 1372, 1456, 1568, 1664, 1715, 1792, 1820, 1960, 2048, 2080, 2240, 2401, 2548, 2560, 2744, 2912, 3136, 3185, 3328, 3430, 3584, 3640, 3920, 4096, 4160, 4459, 4480, 4802, 5096, 5120, 5488, 5824, 6272, 6370, 6656, 6860, 7168, 7280, 7840, 8192, 8320, 8918, 8960, 9604, 10192, 10240, 10976, 11648, 12005, 12544, 12740, 13312, 13720, 14336, 14560, 15680, 16640, 17836, 17920, 19208, 20384, 20480, 21952, 22295, 23296, 24010, 25088, 25480, 26624, 27440, 28672, 29120, 31213, 31360, 33280, 35672, 35840, 38416, 40768, 40960, 43904, 44590, 46592, 48020, 50176, 50960, 53248, 54880, 57344, 58240, 62426, 62720, 66560, 71344, 71680, 76832, 81536, 87808, 89180, 93184, 96040, 100352, 101920, 106496, 109760, 116480, 124852, 125440, 133120, 142688, 143360, 153664, 156065, 163072, 175616, 178360, 186368, 192080, 200704, 203840, 219520, 232960, 249704, 250880, 266240, 285376, 286720, 307328, 312130, 326144, 351232, 356720, 372736, 384160, 401408, 407680, 439040, 465920, 499408, 501760, 532480, 570752, 614656, 624260, 652288, 702464, 713440, 745472, 768320, 815360, 878080, 931840, 998816, 1003520, 1141504, 1229312, 1248520, 1304576, 1404928, 1426880, 1536640, 1630720, 1756160, 1863680, 1997632, 2007040, 2283008, 2458624, 2497040, 2609152, 2809856, 2853760, 3073280, 3261440, 3512320, 3727360, 3995264, 4566016, 4917248, 4994080, 5218304, 5707520, 6146560, 6522880, 7024640, 7990528, 9132032, 9834496, 9988160, 11415040, 12293120, 13045760, 14049280, 15981056, 18264064, 19668992, 19976320, 22830080, 24586240, 26091520, 31962112, 36528128, 39952640, 45660160, 49172480, 63924224, 79905280, 91320320, 98344960, 127848448, 159810560, 182640640, 255696896, 319621120, 639242240, 1278484480]

約数ペア:

[(1, 1278484480), (2, 639242240), (4, 319621120), (5, 255696896), (7, 182640640), (8, 159810560), (10, 127848448), (13, 98344960), (14, 91320320), (16, 79905280), (20, 63924224), (26, 49172480), (28, 45660160), (32, 39952640), (35, 36528128), (40, 31962112), (49, 26091520), (52, 24586240), (56, 22830080), (64, 19976320), (65, 19668992), (70, 18264064), (80, 15981056), (91, 14049280), (98, 13045760), (104, 12293120), (112, 11415040), (128, 9988160), (130, 9834496), (140, 9132032), (160, 7990528), (182, 7024640), (196, 6522880), (208, 6146560), (224, 5707520), (245, 5218304), (256, 4994080), (260, 4917248), (280, 4566016), (320, 3995264), (343, 3727360), (364, 3512320), (392, 3261440), (416, 3073280), (448, 2853760), (455, 2809856), (490, 2609152), (512, 2497040), (520, 2458624), (560, 2283008), (637, 2007040), (640, 1997632), (686, 1863680), (728, 1756160), (784, 1630720), (832, 1536640), (896, 1426880), (910, 1404928), (980, 1304576), (1024, 1248520), (1040, 1229312), (1120, 1141504), (1274, 1003520), (1280, 998816), (1372, 931840), (1456, 878080), (1568, 815360), (1664, 768320), (1715, 745472), (1792, 713440), (1820, 702464), (1960, 652288), (2048, 624260), (2080, 614656), (2240, 570752), (2401, 532480), (2548, 501760), (2560, 499408), (2744, 465920), (2912, 439040), (3136, 407680), (3185, 401408), (3328, 384160), (3430, 372736), (3584, 356720), (3640, 351232), (3920, 326144), (4096, 312130), (4160, 307328), (4459, 286720), (4480, 285376), (4802, 266240), (5096, 250880), (5120, 249704), (5488, 232960), (5824, 219520), (6272, 203840), (6370, 200704), (6656, 192080), (6860, 186368), (7168, 178360), (7280, 175616), (7840, 163072), (8192, 156065), (8320, 153664), (8918, 143360), (8960, 142688), (9604, 133120), (10192, 125440), (10240, 124852), (10976, 116480), (11648, 109760), (12005, 106496), (12544, 101920), (12740, 100352), (13312, 96040), (13720, 93184), (14336, 89180), (14560, 87808), (15680, 81536), (16640, 76832), (17836, 71680), (17920, 71344), (19208, 66560), (20384, 62720), (20480, 62426), (21952, 58240), (22295, 57344), (23296, 54880), (24010, 53248), (25088, 50960), (25480, 50176), (26624, 48020), (27440, 46592), (28672, 44590), (29120, 43904), (31213, 40960), (31360, 40768), (33280, 38416), (35672, 35840)]