139925380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{2011}}^1$

素因数の和:2105

約数の個数: 72

約数和(自身を含む): 346804416

約数和(自身を除く): 206879036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 245, 284, 355, 490, 497, 710, 980, 994, 1420, 1988, 2011, 2485, 3479, 4022, 4970, 6958, 8044, 9940, 10055, 13916, 14077, 17395, 20110, 28154, 34790, 40220, 56308, 69580, 70385, 98539, 140770, 142781, 197078, 281540, 285562, 394156, 492695, 571124, 713905, 985390, 999467, 1427810, 1970780, 1998934, 2855620, 3997868, 4997335, 6996269, 9994670, 13992538, 19989340, 27985076, 34981345, 69962690, 139925380]

約数ペア:

[(1, 139925380), (2, 69962690), (4, 34981345), (5, 27985076), (7, 19989340), (10, 13992538), (14, 9994670), (20, 6996269), (28, 4997335), (35, 3997868), (49, 2855620), (70, 1998934), (71, 1970780), (98, 1427810), (140, 999467), (142, 985390), (196, 713905), (245, 571124), (284, 492695), (355, 394156), (490, 285562), (497, 281540), (710, 197078), (980, 142781), (994, 140770), (1420, 98539), (1988, 70385), (2011, 69580), (2485, 56308), (3479, 40220), (4022, 34790), (4970, 28154), (6958, 20110), (8044, 17395), (9940, 14077), (10055, 13916)]