21398981120

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{811}}^1\times {\mathrm{937}}^1$

素因数の和:1782

約数の個数: 160

約数和(自身を含む): 56100534336

約数和(自身を除く): 34701553216

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 512, 640, 704, 811, 880, 937, 1280, 1408, 1622, 1760, 1874, 2560, 2816, 3244, 3520, 3748, 4055, 4685, 5632, 6488, 7040, 7496, 8110, 8921, 9370, 10307, 12976, 14080, 14992, 16220, 17842, 18740, 20614, 25952, 28160, 29984, 32440, 35684, 37480, 41228, 44605, 51535, 51904, 59968, 64880, 71368, 74960, 82456, 89210, 103070, 103808, 119936, 129760, 142736, 149920, 164912, 178420, 206140, 207616, 239872, 259520, 285472, 299840, 329824, 356840, 412280, 415232, 479744, 519040, 570944, 599680, 659648, 713680, 759907, 824560, 1038080, 1141888, 1199360, 1319296, 1427360, 1519814, 1649120, 2076160, 2283776, 2398720, 2638592, 2854720, 3039628, 3298240, 3799535, 4567552, 5277184, 5709440, 6079256, 6596480, 7599070, 8358977, 11418880, 12158512, 13192960, 15198140, 16717954, 22837760, 24317024, 26385920, 30396280, 33435908, 41794885, 48634048, 60792560, 66871816, 83589770, 97268096, 121585120, 133743632, 167179540, 194536192, 243170240, 267487264, 334359080, 389072384, 486340480, 534974528, 668718160, 972680960, 1069949056, 1337436320, 1945361920, 2139898112, 2674872640, 4279796224, 5349745280, 10699490560, 21398981120]

約数ペア:

[(1, 21398981120), (2, 10699490560), (4, 5349745280), (5, 4279796224), (8, 2674872640), (10, 2139898112), (11, 1945361920), (16, 1337436320), (20, 1069949056), (22, 972680960), (32, 668718160), (40, 534974528), (44, 486340480), (55, 389072384), (64, 334359080), (80, 267487264), (88, 243170240), (110, 194536192), (128, 167179540), (160, 133743632), (176, 121585120), (220, 97268096), (256, 83589770), (320, 66871816), (352, 60792560), (440, 48634048), (512, 41794885), (640, 33435908), (704, 30396280), (811, 26385920), (880, 24317024), (937, 22837760), (1280, 16717954), (1408, 15198140), (1622, 13192960), (1760, 12158512), (1874, 11418880), (2560, 8358977), (2816, 7599070), (3244, 6596480), (3520, 6079256), (3748, 5709440), (4055, 5277184), (4685, 4567552), (5632, 3799535), (6488, 3298240), (7040, 3039628), (7496, 2854720), (8110, 2638592), (8921, 2398720), (9370, 2283776), (10307, 2076160), (12976, 1649120), (14080, 1519814), (14992, 1427360), (16220, 1319296), (17842, 1199360), (18740, 1141888), (20614, 1038080), (25952, 824560), (28160, 759907), (29984, 713680), (32440, 659648), (35684, 599680), (37480, 570944), (41228, 519040), (44605, 479744), (51535, 415232), (51904, 412280), (59968, 356840), (64880, 329824), (71368, 299840), (74960, 285472), (82456, 259520), (89210, 239872), (103070, 207616), (103808, 206140), (119936, 178420), (129760, 164912), (142736, 149920)]