8540840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:135

約数の個数: 128

約数和(自身を含む): 24883200

約数和(自身を除く): 16342360

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 47, 55, 56, 59, 70, 77, 88, 94, 110, 118, 140, 154, 188, 220, 235, 236, 280, 295, 308, 329, 376, 385, 413, 440, 470, 472, 517, 590, 616, 649, 658, 770, 826, 940, 1034, 1180, 1298, 1316, 1540, 1645, 1652, 1880, 2065, 2068, 2360, 2585, 2596, 2632, 2773, 3080, 3245, 3290, 3304, 3619, 4130, 4136, 4543, 5170, 5192, 5546, 6490, 6580, 7238, 8260, 9086, 10340, 11092, 12980, 13160, 13865, 14476, 16520, 18095, 18172, 19411, 20680, 22184, 22715, 25960, 27730, 28952, 30503, 36190, 36344, 38822, 45430, 55460, 61006, 72380, 77644, 90860, 97055, 110920, 122012, 144760, 152515, 155288, 181720, 194110, 213521, 244024, 305030, 388220, 427042, 610060, 776440, 854084, 1067605, 1220120, 1708168, 2135210, 4270420, 8540840]

約数ペア:

[(1, 8540840), (2, 4270420), (4, 2135210), (5, 1708168), (7, 1220120), (8, 1067605), (10, 854084), (11, 776440), (14, 610060), (20, 427042), (22, 388220), (28, 305030), (35, 244024), (40, 213521), (44, 194110), (47, 181720), (55, 155288), (56, 152515), (59, 144760), (70, 122012), (77, 110920), (88, 97055), (94, 90860), (110, 77644), (118, 72380), (140, 61006), (154, 55460), (188, 45430), (220, 38822), (235, 36344), (236, 36190), (280, 30503), (295, 28952), (308, 27730), (329, 25960), (376, 22715), (385, 22184), (413, 20680), (440, 19411), (470, 18172), (472, 18095), (517, 16520), (590, 14476), (616, 13865), (649, 13160), (658, 12980), (770, 11092), (826, 10340), (940, 9086), (1034, 8260), (1180, 7238), (1298, 6580), (1316, 6490), (1540, 5546), (1645, 5192), (1652, 5170), (1880, 4543), (2065, 4136), (2068, 4130), (2360, 3619), (2585, 3304), (2596, 3290), (2632, 3245), (2773, 3080)]