20161377680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1\times {\mathrm{28307}}^1$

素因数の和:28656

約数の個数: 80

約数和(自身を含む): 48651261120

約数和(自身を除く): 28489883440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 307, 464, 580, 614, 1160, 1228, 1535, 2320, 2456, 3070, 4912, 6140, 8903, 12280, 17806, 24560, 28307, 35612, 44515, 56614, 71224, 89030, 113228, 141535, 142448, 178060, 226456, 283070, 356120, 452912, 566140, 712240, 820903, 1132280, 1641806, 2264560, 3283612, 4104515, 6567224, 8209030, 8690249, 13134448, 16418060, 17380498, 32836120, 34760996, 43451245, 65672240, 69521992, 86902490, 139043984, 173804980, 252017221, 347609960, 504034442, 695219920, 1008068884, 1260086105, 2016137768, 2520172210, 4032275536, 5040344420, 10080688840, 20161377680]

約数ペア:

[(1, 20161377680), (2, 10080688840), (4, 5040344420), (5, 4032275536), (8, 2520172210), (10, 2016137768), (16, 1260086105), (20, 1008068884), (29, 695219920), (40, 504034442), (58, 347609960), (80, 252017221), (116, 173804980), (145, 139043984), (232, 86902490), (290, 69521992), (307, 65672240), (464, 43451245), (580, 34760996), (614, 32836120), (1160, 17380498), (1228, 16418060), (1535, 13134448), (2320, 8690249), (2456, 8209030), (3070, 6567224), (4912, 4104515), (6140, 3283612), (8903, 2264560), (12280, 1641806), (17806, 1132280), (24560, 820903), (28307, 712240), (35612, 566140), (44515, 452912), (56614, 356120), (71224, 283070), (89030, 226456), (113228, 178060), (141535, 142448)]