19781386240

素因数分解:

$2^{20}\times 5^1\times 7^3\times {\mathrm{11}}^1$

素因数の和:77

約数の個数: 336

約数和(自身を含む): 60397948800

約数和(自身を除く): 40616562560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 64, 70, 77, 80, 88, 98, 110, 112, 128, 140, 154, 160, 176, 196, 220, 224, 245, 256, 280, 308, 320, 343, 352, 385, 392, 440, 448, 490, 512, 539, 560, 616, 640, 686, 704, 770, 784, 880, 896, 980, 1024, 1078, 1120, 1232, 1280, 1372, 1408, 1540, 1568, 1715, 1760, 1792, 1960, 2048, 2156, 2240, 2464, 2560, 2695, 2744, 2816, 3080, 3136, 3430, 3520, 3584, 3773, 3920, 4096, 4312, 4480, 4928, 5120, 5390, 5488, 5632, 6160, 6272, 6860, 7040, 7168, 7546, 7840, 8192, 8624, 8960, 9856, 10240, 10780, 10976, 11264, 12320, 12544, 13720, 14080, 14336, 15092, 15680, 16384, 17248, 17920, 18865, 19712, 20480, 21560, 21952, 22528, 24640, 25088, 27440, 28160, 28672, 30184, 31360, 32768, 34496, 35840, 37730, 39424, 40960, 43120, 43904, 45056, 49280, 50176, 54880, 56320, 57344, 60368, 62720, 65536, 68992, 71680, 75460, 78848, 81920, 86240, 87808, 90112, 98560, 100352, 109760, 112640, 114688, 120736, 125440, 131072, 137984, 143360, 150920, 157696, 163840, 172480, 175616, 180224, 197120, 200704, 219520, 225280, 229376, 241472, 250880, 262144, 275968, 286720, 301840, 315392, 327680, 344960, 351232, 360448, 394240, 401408, 439040, 450560, 458752, 482944, 501760, 524288, 551936, 573440, 603680, 630784, 655360, 689920, 702464, 720896, 788480, 802816, 878080, 901120, 917504, 965888, 1003520, 1048576, 1103872, 1146880, 1207360, 1261568, 1310720, 1379840, 1404928, 1441792, 1576960, 1605632, 1756160, 1802240, 1835008, 1931776, 2007040, 2207744, 2293760, 2414720, 2523136, 2621440, 2759680, 2809856, 2883584, 3153920, 3211264, 3512320, 3604480, 3670016, 3863552, 4014080, 4415488, 4587520, 4829440, 5046272, 5242880, 5519360, 5619712, 5767168, 6307840, 6422528, 7024640, 7208960, 7340032, 7727104, 8028160, 8830976, 9175040, 9658880, 10092544, 11038720, 11239424, 11534336, 12615680, 12845056, 14049280, 14417920, 15454208, 16056320, 17661952, 18350080, 19317760, 20185088, 22077440, 22478848, 25231360, 25690112, 28098560, 28835840, 30908416, 32112640, 35323904, 36700160, 38635520, 40370176, 44154880, 44957696, 50462720, 51380224, 56197120, 57671680, 61816832, 64225280, 70647808, 77271040, 80740352, 88309760, 89915392, 100925440, 112394240, 123633664, 128450560, 141295616, 154542080, 176619520, 179830784, 201850880, 224788480, 247267328, 256901120, 282591232, 309084160, 353239040, 359661568, 403701760, 449576960, 494534656, 565182464, 618168320, 706478080, 899153920, 989069312, 1236336640, 1412956160, 1798307840, 1978138624, 2472673280, 2825912320, 3956277248, 4945346560, 9890693120, 19781386240]

約数ペア:

[(1, 19781386240), (2, 9890693120), (4, 4945346560), (5, 3956277248), (7, 2825912320), (8, 2472673280), (10, 1978138624), (11, 1798307840), (14, 1412956160), (16, 1236336640), (20, 989069312), (22, 899153920), (28, 706478080), (32, 618168320), (35, 565182464), (40, 494534656), (44, 449576960), (49, 403701760), (55, 359661568), (56, 353239040), (64, 309084160), (70, 282591232), (77, 256901120), (80, 247267328), (88, 224788480), (98, 201850880), (110, 179830784), (112, 176619520), (128, 154542080), (140, 141295616), (154, 128450560), (160, 123633664), (176, 112394240), (196, 100925440), (220, 89915392), (224, 88309760), (245, 80740352), (256, 77271040), (280, 70647808), (308, 64225280), (320, 61816832), (343, 57671680), (352, 56197120), (385, 51380224), (392, 50462720), (440, 44957696), (448, 44154880), (490, 40370176), (512, 38635520), (539, 36700160), (560, 35323904), (616, 32112640), (640, 30908416), (686, 28835840), (704, 28098560), (770, 25690112), (784, 25231360), (880, 22478848), (896, 22077440), (980, 20185088), (1024, 19317760), (1078, 18350080), (1120, 17661952), (1232, 16056320), (1280, 15454208), (1372, 14417920), (1408, 14049280), (1540, 12845056), (1568, 12615680), (1715, 11534336), (1760, 11239424), (1792, 11038720), (1960, 10092544), (2048, 9658880), (2156, 9175040), (2240, 8830976), (2464, 8028160), (2560, 7727104), (2695, 7340032), (2744, 7208960), (2816, 7024640), (3080, 6422528), (3136, 6307840), (3430, 5767168), (3520, 5619712), (3584, 5519360), (3773, 5242880), (3920, 5046272), (4096, 4829440), (4312, 4587520), (4480, 4415488), (4928, 4014080), (5120, 3863552), (5390, 3670016), (5488, 3604480), (5632, 3512320), (6160, 3211264), (6272, 3153920), (6860, 2883584), (7040, 2809856), (7168, 2759680), (7546, 2621440), (7840, 2523136), (8192, 2414720), (8624, 2293760), (8960, 2207744), (9856, 2007040), (10240, 1931776), (10780, 1835008), (10976, 1802240), (11264, 1756160), (12320, 1605632), (12544, 1576960), (13720, 1441792), (14080, 1404928), (14336, 1379840), (15092, 1310720), (15680, 1261568), (16384, 1207360), (17248, 1146880), (17920, 1103872), (18865, 1048576), (19712, 1003520), (20480, 965888), (21560, 917504), (21952, 901120), (22528, 878080), (24640, 802816), (25088, 788480), (27440, 720896), (28160, 702464), (28672, 689920), (30184, 655360), (31360, 630784), (32768, 603680), (34496, 573440), (35840, 551936), (37730, 524288), (39424, 501760), (40960, 482944), (43120, 458752), (43904, 450560), (45056, 439040), (49280, 401408), (50176, 394240), (54880, 360448), (56320, 351232), (57344, 344960), (60368, 327680), (62720, 315392), (65536, 301840), (68992, 286720), (71680, 275968), (75460, 262144), (78848, 250880), (81920, 241472), (86240, 229376), (87808, 225280), (90112, 219520), (98560, 200704), (100352, 197120), (109760, 180224), (112640, 175616), (114688, 172480), (120736, 163840), (125440, 157696), (131072, 150920), (137984, 143360)]