20512221760

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{911}}^1\times {\mathrm{4139}}^1$

素因数の和:5084

約数の個数: 112

約数和(自身を含む): 51787226880

約数和(自身を除く): 31275005120

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 911, 1088, 1360, 1822, 2720, 3644, 4139, 4555, 5440, 7288, 8278, 9110, 14576, 15487, 16556, 18220, 20695, 29152, 30974, 33112, 36440, 41390, 58304, 61948, 66224, 70363, 72880, 77435, 82780, 123896, 132448, 140726, 145760, 154870, 165560, 247792, 264896, 281452, 291520, 309740, 331120, 351815, 495584, 562904, 619480, 662240, 703630, 991168, 1125808, 1238960, 1324480, 1407260, 2251616, 2477920, 2814520, 3770629, 4503232, 4955840, 5629040, 7541258, 11258080, 15082516, 18853145, 22516160, 30165032, 37706290, 60330064, 64100693, 75412580, 120660128, 128201386, 150825160, 241320256, 256402772, 301650320, 320503465, 512805544, 603300640, 641006930, 1025611088, 1206601280, 1282013860, 2051222176, 2564027720, 4102444352, 5128055440, 10256110880, 20512221760]

約数ペア:

[(1, 20512221760), (2, 10256110880), (4, 5128055440), (5, 4102444352), (8, 2564027720), (10, 2051222176), (16, 1282013860), (17, 1206601280), (20, 1025611088), (32, 641006930), (34, 603300640), (40, 512805544), (64, 320503465), (68, 301650320), (80, 256402772), (85, 241320256), (136, 150825160), (160, 128201386), (170, 120660128), (272, 75412580), (320, 64100693), (340, 60330064), (544, 37706290), (680, 30165032), (911, 22516160), (1088, 18853145), (1360, 15082516), (1822, 11258080), (2720, 7541258), (3644, 5629040), (4139, 4955840), (4555, 4503232), (5440, 3770629), (7288, 2814520), (8278, 2477920), (9110, 2251616), (14576, 1407260), (15487, 1324480), (16556, 1238960), (18220, 1125808), (20695, 991168), (29152, 703630), (30974, 662240), (33112, 619480), (36440, 562904), (41390, 495584), (58304, 351815), (61948, 331120), (66224, 309740), (70363, 291520), (72880, 281452), (77435, 264896), (82780, 247792), (123896, 165560), (132448, 154870), (140726, 145760)]