81387488

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1471}}^1$

素因数の和:1520

約数の個数: 96

約数和(自身を含む): 207728640

約数和(自身を除く): 126341152

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 32, 38, 52, 56, 76, 91, 104, 112, 133, 152, 182, 208, 224, 247, 266, 304, 364, 416, 494, 532, 608, 728, 988, 1064, 1456, 1471, 1729, 1976, 2128, 2912, 2942, 3458, 3952, 4256, 5884, 6916, 7904, 10297, 11768, 13832, 19123, 20594, 23536, 27664, 27949, 38246, 41188, 47072, 55328, 55898, 76492, 82376, 111796, 133861, 152984, 164752, 195643, 223592, 267722, 305968, 329504, 363337, 391286, 447184, 535444, 611936, 726674, 782572, 894368, 1070888, 1453348, 1565144, 2141776, 2543359, 2906696, 3130288, 4283552, 5086718, 5813392, 6260576, 10173436, 11626784, 20346872, 40693744, 81387488]

約数ペア:

[(1, 81387488), (2, 40693744), (4, 20346872), (7, 11626784), (8, 10173436), (13, 6260576), (14, 5813392), (16, 5086718), (19, 4283552), (26, 3130288), (28, 2906696), (32, 2543359), (38, 2141776), (52, 1565144), (56, 1453348), (76, 1070888), (91, 894368), (104, 782572), (112, 726674), (133, 611936), (152, 535444), (182, 447184), (208, 391286), (224, 363337), (247, 329504), (266, 305968), (304, 267722), (364, 223592), (416, 195643), (494, 164752), (532, 152984), (608, 133861), (728, 111796), (988, 82376), (1064, 76492), (1456, 55898), (1471, 55328), (1729, 47072), (1976, 41188), (2128, 38246), (2912, 27949), (2942, 27664), (3458, 23536), (3952, 20594), (4256, 19123), (5884, 13832), (6916, 11768), (7904, 10297)]