78638000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:208

約数の個数: 160

約数和(自身を含む): 224235648

約数和(自身を除く): 145597648

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 41, 50, 56, 70, 80, 82, 100, 112, 125, 137, 140, 164, 175, 200, 205, 250, 274, 280, 287, 328, 350, 400, 410, 500, 548, 560, 574, 656, 685, 700, 820, 875, 959, 1000, 1025, 1096, 1148, 1370, 1400, 1435, 1640, 1750, 1918, 2000, 2050, 2192, 2296, 2740, 2800, 2870, 3280, 3425, 3500, 3836, 4100, 4592, 4795, 5125, 5480, 5617, 5740, 6850, 7000, 7175, 7672, 8200, 9590, 10250, 10960, 11234, 11480, 13700, 14000, 14350, 15344, 16400, 17125, 19180, 20500, 22468, 22960, 23975, 27400, 28085, 28700, 34250, 35875, 38360, 39319, 41000, 44936, 47950, 54800, 56170, 57400, 68500, 71750, 76720, 78638, 82000, 89872, 95900, 112340, 114800, 119875, 137000, 140425, 143500, 157276, 191800, 196595, 224680, 239750, 274000, 280850, 287000, 314552, 383600, 393190, 449360, 479500, 561700, 574000, 629104, 702125, 786380, 959000, 982975, 1123400, 1404250, 1572760, 1918000, 1965950, 2246800, 2808500, 3145520, 3931900, 4914875, 5617000, 7863800, 9829750, 11234000, 15727600, 19659500, 39319000, 78638000]

約数ペア:

[(1, 78638000), (2, 39319000), (4, 19659500), (5, 15727600), (7, 11234000), (8, 9829750), (10, 7863800), (14, 5617000), (16, 4914875), (20, 3931900), (25, 3145520), (28, 2808500), (35, 2246800), (40, 1965950), (41, 1918000), (50, 1572760), (56, 1404250), (70, 1123400), (80, 982975), (82, 959000), (100, 786380), (112, 702125), (125, 629104), (137, 574000), (140, 561700), (164, 479500), (175, 449360), (200, 393190), (205, 383600), (250, 314552), (274, 287000), (280, 280850), (287, 274000), (328, 239750), (350, 224680), (400, 196595), (410, 191800), (500, 157276), (548, 143500), (560, 140425), (574, 137000), (656, 119875), (685, 114800), (700, 112340), (820, 95900), (875, 89872), (959, 82000), (1000, 78638), (1025, 76720), (1096, 71750), (1148, 68500), (1370, 57400), (1400, 56170), (1435, 54800), (1640, 47950), (1750, 44936), (1918, 41000), (2000, 39319), (2050, 38360), (2192, 35875), (2296, 34250), (2740, 28700), (2800, 28085), (2870, 27400), (3280, 23975), (3425, 22960), (3500, 22468), (3836, 20500), (4100, 19180), (4592, 17125), (4795, 16400), (5125, 15344), (5480, 14350), (5617, 14000), (5740, 13700), (6850, 11480), (7000, 11234), (7175, 10960), (7672, 10250), (8200, 9590)]