28259000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{367}}^1$

素因数の和:406

約数の個数: 128

約数和(自身を含む): 82667520

約数和(自身を除く): 54408520

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 70, 77, 88, 100, 110, 125, 140, 154, 175, 200, 220, 250, 275, 280, 308, 350, 367, 385, 440, 500, 550, 616, 700, 734, 770, 875, 1000, 1100, 1375, 1400, 1468, 1540, 1750, 1835, 1925, 2200, 2569, 2750, 2936, 3080, 3500, 3670, 3850, 4037, 5138, 5500, 7000, 7340, 7700, 8074, 9175, 9625, 10276, 11000, 12845, 14680, 15400, 16148, 18350, 19250, 20185, 20552, 25690, 28259, 32296, 36700, 38500, 40370, 45875, 51380, 56518, 64225, 73400, 77000, 80740, 91750, 100925, 102760, 113036, 128450, 141295, 161480, 183500, 201850, 226072, 256900, 282590, 321125, 367000, 403700, 504625, 513800, 565180, 642250, 706475, 807400, 1009250, 1130360, 1284500, 1412950, 2018500, 2569000, 2825900, 3532375, 4037000, 5651800, 7064750, 14129500, 28259000]

約数ペア:

[(1, 28259000), (2, 14129500), (4, 7064750), (5, 5651800), (7, 4037000), (8, 3532375), (10, 2825900), (11, 2569000), (14, 2018500), (20, 1412950), (22, 1284500), (25, 1130360), (28, 1009250), (35, 807400), (40, 706475), (44, 642250), (50, 565180), (55, 513800), (56, 504625), (70, 403700), (77, 367000), (88, 321125), (100, 282590), (110, 256900), (125, 226072), (140, 201850), (154, 183500), (175, 161480), (200, 141295), (220, 128450), (250, 113036), (275, 102760), (280, 100925), (308, 91750), (350, 80740), (367, 77000), (385, 73400), (440, 64225), (500, 56518), (550, 51380), (616, 45875), (700, 40370), (734, 38500), (770, 36700), (875, 32296), (1000, 28259), (1100, 25690), (1375, 20552), (1400, 20185), (1468, 19250), (1540, 18350), (1750, 16148), (1835, 15400), (1925, 14680), (2200, 12845), (2569, 11000), (2750, 10276), (2936, 9625), (3080, 9175), (3500, 8074), (3670, 7700), (3850, 7340), (4037, 7000), (5138, 5500)]