81328016

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{263}}^1$

素因数の和:540

約数の個数: 80

約数和(自身を含む): 197987328

約数和(自身を除く): 116659312

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 251, 263, 308, 502, 526, 616, 1004, 1052, 1232, 1757, 1841, 2008, 2104, 2761, 2893, 3514, 3682, 4016, 4208, 5522, 5786, 7028, 7364, 11044, 11572, 14056, 14728, 19327, 20251, 22088, 23144, 28112, 29456, 38654, 40502, 44176, 46288, 66013, 77308, 81004, 132026, 154616, 162008, 264052, 309232, 324016, 462091, 528104, 726143, 924182, 1056208, 1452286, 1848364, 2904572, 3696728, 5083001, 5809144, 7393456, 10166002, 11618288, 20332004, 40664008, 81328016]

約数ペア:

[(1, 81328016), (2, 40664008), (4, 20332004), (7, 11618288), (8, 10166002), (11, 7393456), (14, 5809144), (16, 5083001), (22, 3696728), (28, 2904572), (44, 1848364), (56, 1452286), (77, 1056208), (88, 924182), (112, 726143), (154, 528104), (176, 462091), (251, 324016), (263, 309232), (308, 264052), (502, 162008), (526, 154616), (616, 132026), (1004, 81004), (1052, 77308), (1232, 66013), (1757, 46288), (1841, 44176), (2008, 40502), (2104, 38654), (2761, 29456), (2893, 28112), (3514, 23144), (3682, 22088), (4016, 20251), (4208, 19327), (5522, 14728), (5786, 14056), (7028, 11572), (7364, 11044)]