205539840

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{811}}^1$

素因数の和:851

約数の個数: 240

約数和(自身を含む): 777512736

約数和(自身を除く): 571972896

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 128, 132, 144, 160, 165, 176, 180, 192, 198, 220, 240, 256, 264, 288, 320, 330, 352, 360, 384, 396, 440, 480, 495, 512, 528, 576, 640, 660, 704, 720, 768, 792, 811, 880, 960, 990, 1056, 1152, 1280, 1320, 1408, 1440, 1536, 1584, 1622, 1760, 1920, 1980, 2112, 2304, 2433, 2560, 2640, 2816, 2880, 3168, 3244, 3520, 3840, 3960, 4055, 4224, 4608, 4866, 5280, 5632, 5760, 6336, 6488, 7040, 7299, 7680, 7920, 8110, 8448, 8921, 9732, 10560, 11520, 12165, 12672, 12976, 14080, 14598, 15840, 16220, 16896, 17842, 19464, 21120, 23040, 24330, 25344, 25952, 26763, 28160, 29196, 31680, 32440, 35684, 36495, 38928, 42240, 44605, 48660, 50688, 51904, 53526, 58392, 63360, 64880, 71368, 72990, 77856, 80289, 84480, 89210, 97320, 103808, 107052, 116784, 126720, 129760, 133815, 142736, 145980, 155712, 160578, 178420, 194640, 207616, 214104, 233568, 253440, 259520, 267630, 285472, 291960, 311424, 321156, 356840, 389280, 401445, 415232, 428208, 467136, 519040, 535260, 570944, 583920, 622848, 642312, 713680, 778560, 802890, 856416, 934272, 1038080, 1070520, 1141888, 1167840, 1245696, 1284624, 1427360, 1557120, 1605780, 1712832, 1868544, 2076160, 2141040, 2283776, 2335680, 2569248, 2854720, 3114240, 3211560, 3425664, 3737088, 4282080, 4567552, 4671360, 5138496, 5709440, 6228480, 6423120, 6851328, 8564160, 9342720, 10276992, 11418880, 12846240, 13702656, 17128320, 18685440, 20553984, 22837760, 25692480, 34256640, 41107968, 51384960, 68513280, 102769920, 205539840]

約数ペア:

[(1, 205539840), (2, 102769920), (3, 68513280), (4, 51384960), (5, 41107968), (6, 34256640), (8, 25692480), (9, 22837760), (10, 20553984), (11, 18685440), (12, 17128320), (15, 13702656), (16, 12846240), (18, 11418880), (20, 10276992), (22, 9342720), (24, 8564160), (30, 6851328), (32, 6423120), (33, 6228480), (36, 5709440), (40, 5138496), (44, 4671360), (45, 4567552), (48, 4282080), (55, 3737088), (60, 3425664), (64, 3211560), (66, 3114240), (72, 2854720), (80, 2569248), (88, 2335680), (90, 2283776), (96, 2141040), (99, 2076160), (110, 1868544), (120, 1712832), (128, 1605780), (132, 1557120), (144, 1427360), (160, 1284624), (165, 1245696), (176, 1167840), (180, 1141888), (192, 1070520), (198, 1038080), (220, 934272), (240, 856416), (256, 802890), (264, 778560), (288, 713680), (320, 642312), (330, 622848), (352, 583920), (360, 570944), (384, 535260), (396, 519040), (440, 467136), (480, 428208), (495, 415232), (512, 401445), (528, 389280), (576, 356840), (640, 321156), (660, 311424), (704, 291960), (720, 285472), (768, 267630), (792, 259520), (811, 253440), (880, 233568), (960, 214104), (990, 207616), (1056, 194640), (1152, 178420), (1280, 160578), (1320, 155712), (1408, 145980), (1440, 142736), (1536, 133815), (1584, 129760), (1622, 126720), (1760, 116784), (1920, 107052), (1980, 103808), (2112, 97320), (2304, 89210), (2433, 84480), (2560, 80289), (2640, 77856), (2816, 72990), (2880, 71368), (3168, 64880), (3244, 63360), (3520, 58392), (3840, 53526), (3960, 51904), (4055, 50688), (4224, 48660), (4608, 44605), (4866, 42240), (5280, 38928), (5632, 36495), (5760, 35684), (6336, 32440), (6488, 31680), (7040, 29196), (7299, 28160), (7680, 26763), (7920, 25952), (8110, 25344), (8448, 24330), (8921, 23040), (9732, 21120), (10560, 19464), (11520, 17842), (12165, 16896), (12672, 16220), (12976, 15840), (14080, 14598)]