78988784

素因数分解:

$2^4\times 7^3\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:455

約数の個数: 80

約数和(自身を含む): 183768000

約数和(自身を除く): 104779216

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 49, 56, 74, 98, 112, 148, 196, 259, 296, 343, 389, 392, 518, 592, 686, 778, 784, 1036, 1372, 1556, 1813, 2072, 2723, 2744, 3112, 3626, 4144, 5446, 5488, 6224, 7252, 10892, 12691, 14393, 14504, 19061, 21784, 25382, 28786, 29008, 38122, 43568, 50764, 57572, 76244, 100751, 101528, 115144, 133427, 152488, 201502, 203056, 230288, 266854, 304976, 403004, 533708, 705257, 806008, 1067416, 1410514, 1612016, 2134832, 2821028, 4936799, 5642056, 9873598, 11284112, 19747196, 39494392, 78988784]

約数ペア:

[(1, 78988784), (2, 39494392), (4, 19747196), (7, 11284112), (8, 9873598), (14, 5642056), (16, 4936799), (28, 2821028), (37, 2134832), (49, 1612016), (56, 1410514), (74, 1067416), (98, 806008), (112, 705257), (148, 533708), (196, 403004), (259, 304976), (296, 266854), (343, 230288), (389, 203056), (392, 201502), (518, 152488), (592, 133427), (686, 115144), (778, 101528), (784, 100751), (1036, 76244), (1372, 57572), (1556, 50764), (1813, 43568), (2072, 38122), (2723, 29008), (2744, 28786), (3112, 25382), (3626, 21784), (4144, 19061), (5446, 14504), (5488, 14393), (6224, 12691), (7252, 10892)]