81016964

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{491}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 166634496

約数和(自身を除く): 85617532

約数列:

[1, 2, 4, 7, 14, 28, 71, 83, 142, 166, 284, 332, 491, 497, 581, 982, 994, 1162, 1964, 1988, 2324, 3437, 5893, 6874, 11786, 13748, 23572, 34861, 40753, 41251, 69722, 81506, 82502, 139444, 163012, 165004, 244027, 285271, 488054, 570542, 976108, 1141084, 2893463, 5786926, 11573852, 20254241, 40508482, 81016964]

約数ペア:

[(1, 81016964), (2, 40508482), (4, 20254241), (7, 11573852), (14, 5786926), (28, 2893463), (71, 1141084), (83, 976108), (142, 570542), (166, 488054), (284, 285271), (332, 244027), (491, 165004), (497, 163012), (581, 139444), (982, 82502), (994, 81506), (1162, 69722), (1964, 41251), (1988, 40753), (2324, 34861), (3437, 23572), (5893, 13748), (6874, 11786)]