639242240

素因数分解:

$2^{12}\times 5^1\times 7^4\times {\mathrm{13}}^1$

素因数の和:70

約数の個数: 260

約数和(自身を含む): 1927211244

約数和(自身を除く): 1287969004

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, 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, 43904, 44590, 46592, 48020, 50176, 50960, 53248, 54880, 58240, 62426, 62720, 66560, 71344, 71680, 76832, 81536, 87808, 89180, 93184, 96040, 100352, 101920, 109760, 116480, 124852, 125440, 133120, 142688, 143360, 153664, 156065, 163072, 175616, 178360, 186368, 192080, 200704, 203840, 219520, 232960, 249704, 250880, 266240, 285376, 307328, 312130, 326144, 351232, 356720, 372736, 384160, 407680, 439040, 465920, 499408, 501760, 570752, 614656, 624260, 652288, 702464, 713440, 768320, 815360, 878080, 931840, 998816, 1003520, 1141504, 1229312, 1248520, 1304576, 1404928, 1426880, 1536640, 1630720, 1756160, 1863680, 1997632, 2283008, 2458624, 2497040, 2609152, 2853760, 3073280, 3261440, 3512320, 3995264, 4566016, 4917248, 4994080, 5707520, 6146560, 6522880, 7024640, 7990528, 9132032, 9834496, 9988160, 11415040, 12293120, 13045760, 15981056, 18264064, 19976320, 22830080, 24586240, 31962112, 39952640, 45660160, 49172480, 63924224, 79905280, 91320320, 127848448, 159810560, 319621120, 639242240]

約数ペア:

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