20130488

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 44997120

約数和(自身を除く): 24866632

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 71, 83, 122, 142, 166, 244, 284, 332, 427, 488, 497, 568, 581, 664, 854, 994, 1162, 1708, 1988, 2324, 3416, 3976, 4331, 4648, 5063, 5893, 8662, 10126, 11786, 17324, 20252, 23572, 30317, 34648, 35441, 40504, 41251, 47144, 60634, 70882, 82502, 121268, 141764, 165004, 242536, 283528, 330008, 359473, 718946, 1437892, 2516311, 2875784, 5032622, 10065244, 20130488]

約数ペア:

[(1, 20130488), (2, 10065244), (4, 5032622), (7, 2875784), (8, 2516311), (14, 1437892), (28, 718946), (56, 359473), (61, 330008), (71, 283528), (83, 242536), (122, 165004), (142, 141764), (166, 121268), (244, 82502), (284, 70882), (332, 60634), (427, 47144), (488, 41251), (497, 40504), (568, 35441), (581, 34648), (664, 30317), (854, 23572), (994, 20252), (1162, 17324), (1708, 11786), (1988, 10126), (2324, 8662), (3416, 5893), (3976, 5063), (4331, 4648)]