2005971520

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{12613}}^1$

素因数の和:12708

約数の個数: 112

約数和(自身を含む): 5536435968

約数和(自身を除く): 3530464448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 140, 142, 160, 224, 280, 284, 320, 355, 448, 497, 560, 568, 710, 994, 1120, 1136, 1420, 1988, 2240, 2272, 2485, 2840, 3976, 4544, 4970, 5680, 7952, 9940, 11360, 12613, 15904, 19880, 22720, 25226, 31808, 39760, 50452, 63065, 79520, 88291, 100904, 126130, 159040, 176582, 201808, 252260, 353164, 403616, 441455, 504520, 706328, 807232, 882910, 895523, 1009040, 1412656, 1765820, 1791046, 2018080, 2825312, 3531640, 3582092, 4036160, 4477615, 5650624, 6268661, 7063280, 7164184, 8955230, 12537322, 14126560, 14328368, 17910460, 25074644, 28253120, 28656736, 31343305, 35820920, 50149288, 57313472, 62686610, 71641840, 100298576, 125373220, 143283680, 200597152, 250746440, 286567360, 401194304, 501492880, 1002985760, 2005971520]

約数ペア:

[(1, 2005971520), (2, 1002985760), (4, 501492880), (5, 401194304), (7, 286567360), (8, 250746440), (10, 200597152), (14, 143283680), (16, 125373220), (20, 100298576), (28, 71641840), (32, 62686610), (35, 57313472), (40, 50149288), (56, 35820920), (64, 31343305), (70, 28656736), (71, 28253120), (80, 25074644), (112, 17910460), (140, 14328368), (142, 14126560), (160, 12537322), (224, 8955230), (280, 7164184), (284, 7063280), (320, 6268661), (355, 5650624), (448, 4477615), (497, 4036160), (560, 3582092), (568, 3531640), (710, 2825312), (994, 2018080), (1120, 1791046), (1136, 1765820), (1420, 1412656), (1988, 1009040), (2240, 895523), (2272, 882910), (2485, 807232), (2840, 706328), (3976, 504520), (4544, 441455), (4970, 403616), (5680, 353164), (7952, 252260), (9940, 201808), (11360, 176582), (12613, 159040), (15904, 126130), (19880, 100904), (22720, 88291), (25226, 79520), (31808, 63065), (39760, 50452)]