81508000

素因数分解:

$2^5\times 5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:144

約数の個数: 192

約数和(自身を含む): 237758976

約数和(自身を除く): 156250976

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 41, 50, 56, 70, 71, 80, 82, 100, 112, 125, 140, 142, 160, 164, 175, 200, 205, 224, 250, 280, 284, 287, 328, 350, 355, 400, 410, 497, 500, 560, 568, 574, 656, 700, 710, 800, 820, 875, 994, 1000, 1025, 1120, 1136, 1148, 1312, 1400, 1420, 1435, 1640, 1750, 1775, 1988, 2000, 2050, 2272, 2296, 2485, 2800, 2840, 2870, 2911, 3280, 3500, 3550, 3976, 4000, 4100, 4592, 4970, 5125, 5600, 5680, 5740, 5822, 6560, 7000, 7100, 7175, 7952, 8200, 8875, 9184, 9940, 10250, 11360, 11480, 11644, 12425, 14000, 14200, 14350, 14555, 15904, 16400, 17750, 19880, 20377, 20500, 22960, 23288, 24850, 28000, 28400, 28700, 29110, 32800, 35500, 35875, 39760, 40754, 41000, 45920, 46576, 49700, 56800, 57400, 58220, 62125, 71000, 71750, 72775, 79520, 81508, 82000, 93152, 99400, 101885, 114800, 116440, 124250, 142000, 143500, 145550, 163016, 164000, 198800, 203770, 229600, 232880, 248500, 284000, 287000, 291100, 326032, 363875, 397600, 407540, 465760, 497000, 509425, 574000, 582200, 652064, 727750, 815080, 994000, 1018850, 1148000, 1164400, 1455500, 1630160, 1988000, 2037700, 2328800, 2547125, 2911000, 3260320, 4075400, 5094250, 5822000, 8150800, 10188500, 11644000, 16301600, 20377000, 40754000, 81508000]

約数ペア:

[(1, 81508000), (2, 40754000), (4, 20377000), (5, 16301600), (7, 11644000), (8, 10188500), (10, 8150800), (14, 5822000), (16, 5094250), (20, 4075400), (25, 3260320), (28, 2911000), (32, 2547125), (35, 2328800), (40, 2037700), (41, 1988000), (50, 1630160), (56, 1455500), (70, 1164400), (71, 1148000), (80, 1018850), (82, 994000), (100, 815080), (112, 727750), (125, 652064), (140, 582200), (142, 574000), (160, 509425), (164, 497000), (175, 465760), (200, 407540), (205, 397600), (224, 363875), (250, 326032), (280, 291100), (284, 287000), (287, 284000), (328, 248500), (350, 232880), (355, 229600), (400, 203770), (410, 198800), (497, 164000), (500, 163016), (560, 145550), (568, 143500), (574, 142000), (656, 124250), (700, 116440), (710, 114800), (800, 101885), (820, 99400), (875, 93152), (994, 82000), (1000, 81508), (1025, 79520), (1120, 72775), (1136, 71750), (1148, 71000), (1312, 62125), (1400, 58220), (1420, 57400), (1435, 56800), (1640, 49700), (1750, 46576), (1775, 45920), (1988, 41000), (2000, 40754), (2050, 39760), (2272, 35875), (2296, 35500), (2485, 32800), (2800, 29110), (2840, 28700), (2870, 28400), (2911, 28000), (3280, 24850), (3500, 23288), (3550, 22960), (3976, 20500), (4000, 20377), (4100, 19880), (4592, 17750), (4970, 16400), (5125, 15904), (5600, 14555), (5680, 14350), (5740, 14200), (5822, 14000), (6560, 12425), (7000, 11644), (7100, 11480), (7175, 11360), (7952, 10250), (8200, 9940), (8875, 9184)]