205012984

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{509}}^1$

素因数の和:748

約数の個数: 64

約数和(自身を含む): 440640000

約数和(自身を除く): 235627016

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 88, 92, 184, 199, 253, 398, 506, 509, 796, 1012, 1018, 1592, 2024, 2036, 2189, 4072, 4378, 4577, 5599, 8756, 9154, 11198, 11707, 17512, 18308, 22396, 23414, 36616, 44792, 46828, 50347, 93656, 100694, 101291, 128777, 201388, 202582, 257554, 402776, 405164, 515108, 810328, 1030216, 1114201, 2228402, 2329693, 4456804, 4659386, 8913608, 9318772, 18637544, 25626623, 51253246, 102506492, 205012984]

約数ペア:

[(1, 205012984), (2, 102506492), (4, 51253246), (8, 25626623), (11, 18637544), (22, 9318772), (23, 8913608), (44, 4659386), (46, 4456804), (88, 2329693), (92, 2228402), (184, 1114201), (199, 1030216), (253, 810328), (398, 515108), (506, 405164), (509, 402776), (796, 257554), (1012, 202582), (1018, 201388), (1592, 128777), (2024, 101291), (2036, 100694), (2189, 93656), (4072, 50347), (4378, 46828), (4577, 44792), (5599, 36616), (8756, 23414), (9154, 22396), (11198, 18308), (11707, 17512)]