640081512

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{397}}^1\times {\mathrm{457}}^1$

素因数の和:880

約数の個数: 144

約数和(自身を含む): 2026086660

約数和(自身を除く): 1386005148

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 84, 98, 126, 147, 168, 196, 252, 294, 392, 397, 441, 457, 504, 588, 794, 882, 914, 1176, 1191, 1371, 1588, 1764, 1828, 2382, 2742, 2779, 3176, 3199, 3528, 3573, 3656, 4113, 4764, 5484, 5558, 6398, 7146, 8226, 8337, 9528, 9597, 10968, 11116, 12796, 14292, 16452, 16674, 19194, 19453, 22232, 22393, 25011, 25592, 28584, 28791, 32904, 33348, 38388, 38906, 44786, 50022, 57582, 58359, 66696, 67179, 76776, 77812, 89572, 100044, 115164, 116718, 134358, 155624, 175077, 179144, 181429, 200088, 201537, 230328, 233436, 268716, 350154, 362858, 403074, 466872, 537432, 544287, 700308, 725716, 806148, 1088574, 1270003, 1400616, 1451432, 1612296, 1632861, 2177148, 2540006, 3265722, 3810009, 4354296, 5080012, 6531444, 7620018, 8890021, 10160024, 11430027, 13062888, 15240036, 17780042, 22860054, 26670063, 30480072, 35560084, 45720108, 53340126, 71120168, 80010189, 91440216, 106680252, 160020378, 213360504, 320040756, 640081512]

約数ペア:

[(1, 640081512), (2, 320040756), (3, 213360504), (4, 160020378), (6, 106680252), (7, 91440216), (8, 80010189), (9, 71120168), (12, 53340126), (14, 45720108), (18, 35560084), (21, 30480072), (24, 26670063), (28, 22860054), (36, 17780042), (42, 15240036), (49, 13062888), (56, 11430027), (63, 10160024), (72, 8890021), (84, 7620018), (98, 6531444), (126, 5080012), (147, 4354296), (168, 3810009), (196, 3265722), (252, 2540006), (294, 2177148), (392, 1632861), (397, 1612296), (441, 1451432), (457, 1400616), (504, 1270003), (588, 1088574), (794, 806148), (882, 725716), (914, 700308), (1176, 544287), (1191, 537432), (1371, 466872), (1588, 403074), (1764, 362858), (1828, 350154), (2382, 268716), (2742, 233436), (2779, 230328), (3176, 201537), (3199, 200088), (3528, 181429), (3573, 179144), (3656, 175077), (4113, 155624), (4764, 134358), (5484, 116718), (5558, 115164), (6398, 100044), (7146, 89572), (8226, 77812), (8337, 76776), (9528, 67179), (9597, 66696), (10968, 58359), (11116, 57582), (12796, 50022), (14292, 44786), (16452, 38906), (16674, 38388), (19194, 33348), (19453, 32904), (22232, 28791), (22393, 28584), (25011, 25592)]