20173585520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{790501}}^1$

素因数の和:790554

約数の個数: 80

約数和(自身を含む): 52932013920

約数和(自身を除く): 32758428400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 176, 220, 232, 290, 319, 440, 464, 580, 638, 880, 1160, 1276, 1595, 2320, 2552, 3190, 5104, 6380, 12760, 25520, 790501, 1581002, 3162004, 3952505, 6324008, 7905010, 8695511, 12648016, 15810020, 17391022, 22924529, 31620040, 34782044, 43477555, 45849058, 63240080, 69564088, 86955110, 91698116, 114622645, 139128176, 173910220, 183396232, 229245290, 252169819, 347820440, 366792464, 458490580, 504339638, 695640880, 916981160, 1008679276, 1260849095, 1833962320, 2017358552, 2521698190, 4034717104, 5043396380, 10086792760, 20173585520]

約数ペア:

[(1, 20173585520), (2, 10086792760), (4, 5043396380), (5, 4034717104), (8, 2521698190), (10, 2017358552), (11, 1833962320), (16, 1260849095), (20, 1008679276), (22, 916981160), (29, 695640880), (40, 504339638), (44, 458490580), (55, 366792464), (58, 347820440), (80, 252169819), (88, 229245290), (110, 183396232), (116, 173910220), (145, 139128176), (176, 114622645), (220, 91698116), (232, 86955110), (290, 69564088), (319, 63240080), (440, 45849058), (464, 43477555), (580, 34782044), (638, 31620040), (880, 22924529), (1160, 17391022), (1276, 15810020), (1595, 12648016), (2320, 8695511), (2552, 7905010), (3190, 6324008), (5104, 3952505), (6380, 3162004), (12760, 1581002), (25520, 790501)]