81004000

素因数分解:

$2^5\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1$

素因数の和:306

約数の個数: 192

約数和(自身を含む): 249080832

約数和(自身を除く): 168076832

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 32, 35, 40, 44, 50, 55, 56, 70, 77, 80, 88, 100, 110, 112, 125, 140, 154, 160, 175, 176, 200, 220, 224, 250, 263, 275, 280, 308, 350, 352, 385, 400, 440, 500, 526, 550, 560, 616, 700, 770, 800, 875, 880, 1000, 1052, 1100, 1120, 1232, 1315, 1375, 1400, 1540, 1750, 1760, 1841, 1925, 2000, 2104, 2200, 2464, 2630, 2750, 2800, 2893, 3080, 3500, 3682, 3850, 4000, 4208, 4400, 5260, 5500, 5600, 5786, 6160, 6575, 7000, 7364, 7700, 8416, 8800, 9205, 9625, 10520, 11000, 11572, 12320, 13150, 14000, 14465, 14728, 15400, 18410, 19250, 20251, 21040, 22000, 23144, 26300, 28000, 28930, 29456, 30800, 32875, 36820, 38500, 40502, 42080, 44000, 46025, 46288, 52600, 57860, 58912, 61600, 65750, 72325, 73640, 77000, 81004, 92050, 92576, 101255, 105200, 115720, 131500, 144650, 147280, 154000, 162008, 184100, 202510, 210400, 230125, 231440, 263000, 289300, 294560, 308000, 324016, 361625, 368200, 405020, 460250, 462880, 506275, 526000, 578600, 648032, 723250, 736400, 810040, 920500, 1012550, 1052000, 1157200, 1446500, 1472800, 1620080, 1841000, 2025100, 2314400, 2531375, 2893000, 3240160, 3682000, 4050200, 5062750, 5786000, 7364000, 8100400, 10125500, 11572000, 16200800, 20251000, 40502000, 81004000]

約数ペア:

[(1, 81004000), (2, 40502000), (4, 20251000), (5, 16200800), (7, 11572000), (8, 10125500), (10, 8100400), (11, 7364000), (14, 5786000), (16, 5062750), (20, 4050200), (22, 3682000), (25, 3240160), (28, 2893000), (32, 2531375), (35, 2314400), (40, 2025100), (44, 1841000), (50, 1620080), (55, 1472800), (56, 1446500), (70, 1157200), (77, 1052000), (80, 1012550), (88, 920500), (100, 810040), (110, 736400), (112, 723250), (125, 648032), (140, 578600), (154, 526000), (160, 506275), (175, 462880), (176, 460250), (200, 405020), (220, 368200), (224, 361625), (250, 324016), (263, 308000), (275, 294560), (280, 289300), (308, 263000), (350, 231440), (352, 230125), (385, 210400), (400, 202510), (440, 184100), (500, 162008), (526, 154000), (550, 147280), (560, 144650), (616, 131500), (700, 115720), (770, 105200), (800, 101255), (875, 92576), (880, 92050), (1000, 81004), (1052, 77000), (1100, 73640), (1120, 72325), (1232, 65750), (1315, 61600), (1375, 58912), (1400, 57860), (1540, 52600), (1750, 46288), (1760, 46025), (1841, 44000), (1925, 42080), (2000, 40502), (2104, 38500), (2200, 36820), (2464, 32875), (2630, 30800), (2750, 29456), (2800, 28930), (2893, 28000), (3080, 26300), (3500, 23144), (3682, 22000), (3850, 21040), (4000, 20251), (4208, 19250), (4400, 18410), (5260, 15400), (5500, 14728), (5600, 14465), (5786, 14000), (6160, 13150), (6575, 12320), (7000, 11572), (7364, 11000), (7700, 10520), (8416, 9625), (8800, 9205)]