1258960640

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1979}}^1$

素因数の和:2078

約数の個数: 144

約数和(自身を含む): 3496711680

約数和(自身を除く): 2237751040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 128, 140, 142, 160, 224, 256, 280, 284, 320, 355, 448, 497, 560, 568, 640, 710, 896, 994, 1120, 1136, 1280, 1420, 1792, 1979, 1988, 2240, 2272, 2485, 2840, 3958, 3976, 4480, 4544, 4970, 5680, 7916, 7952, 8960, 9088, 9895, 9940, 11360, 13853, 15832, 15904, 18176, 19790, 19880, 22720, 27706, 31664, 31808, 39580, 39760, 45440, 55412, 63328, 63616, 69265, 79160, 79520, 90880, 110824, 126656, 127232, 138530, 140509, 158320, 159040, 221648, 253312, 277060, 281018, 316640, 318080, 443296, 506624, 554120, 562036, 633280, 636160, 702545, 886592, 983563, 1108240, 1124072, 1266560, 1405090, 1773184, 1967126, 2216480, 2248144, 2533120, 2810180, 3546368, 3934252, 4432960, 4496288, 4917815, 5620360, 7868504, 8865920, 8992576, 9835630, 11240720, 15737008, 17731840, 17985152, 19671260, 22481440, 31474016, 35970304, 39342520, 44962880, 62948032, 78685040, 89925760, 125896064, 157370080, 179851520, 251792128, 314740160, 629480320, 1258960640]

約数ペア:

[(1, 1258960640), (2, 629480320), (4, 314740160), (5, 251792128), (7, 179851520), (8, 157370080), (10, 125896064), (14, 89925760), (16, 78685040), (20, 62948032), (28, 44962880), (32, 39342520), (35, 35970304), (40, 31474016), (56, 22481440), (64, 19671260), (70, 17985152), (71, 17731840), (80, 15737008), (112, 11240720), (128, 9835630), (140, 8992576), (142, 8865920), (160, 7868504), (224, 5620360), (256, 4917815), (280, 4496288), (284, 4432960), (320, 3934252), (355, 3546368), (448, 2810180), (497, 2533120), (560, 2248144), (568, 2216480), (640, 1967126), (710, 1773184), (896, 1405090), (994, 1266560), (1120, 1124072), (1136, 1108240), (1280, 983563), (1420, 886592), (1792, 702545), (1979, 636160), (1988, 633280), (2240, 562036), (2272, 554120), (2485, 506624), (2840, 443296), (3958, 318080), (3976, 316640), (4480, 281018), (4544, 277060), (4970, 253312), (5680, 221648), (7916, 159040), (7952, 158320), (8960, 140509), (9088, 138530), (9895, 127232), (9940, 126656), (11360, 110824), (13853, 90880), (15832, 79520), (15904, 79160), (18176, 69265), (19790, 63616), (19880, 63328), (22720, 55412), (27706, 45440), (31664, 39760), (31808, 39580)]