2780455069

素因数分解:

$7^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 3538944000

約数和(自身を除く): 758488931

約数列:

[1, 7, 29, 31, 49, 71, 127, 203, 217, 343, 497, 889, 899, 1421, 1519, 2059, 2201, 3479, 3683, 3937, 6223, 6293, 9017, 9947, 10633, 14413, 15407, 24353, 25781, 27559, 43561, 44051, 63119, 63829, 100891, 107849, 114173, 180467, 192913, 261493, 279527, 308357, 441833, 446803, 706237, 754943, 799211, 1263269, 1350391, 1830451, 1956689, 3092831, 3127621, 5594477, 8106283, 12813157, 13696823, 21893347, 39161339, 56743981, 89692099, 95877761, 397207867, 2780455069]

約数ペア:

[(1, 2780455069), (7, 397207867), (29, 95877761), (31, 89692099), (49, 56743981), (71, 39161339), (127, 21893347), (203, 13696823), (217, 12813157), (343, 8106283), (497, 5594477), (889, 3127621), (899, 3092831), (1421, 1956689), (1519, 1830451), (2059, 1350391), (2201, 1263269), (3479, 799211), (3683, 754943), (3937, 706237), (6223, 446803), (6293, 441833), (9017, 308357), (9947, 279527), (10633, 261493), (14413, 192913), (15407, 180467), (24353, 114173), (25781, 107849), (27559, 100891), (43561, 63829), (44051, 63119)]