128639504

素因数分解:

$2^4\times 7^2\times {\mathrm{71}}^1\times {\mathrm{2311}}^1$

素因数の和:2404

約数の個数: 60

約数和(自身を含む): 294141888

約数和(自身を除く): 165502384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 71, 98, 112, 142, 196, 284, 392, 497, 568, 784, 994, 1136, 1988, 2311, 3479, 3976, 4622, 6958, 7952, 9244, 13916, 16177, 18488, 27832, 32354, 36976, 55664, 64708, 113239, 129416, 164081, 226478, 258832, 328162, 452956, 656324, 905912, 1148567, 1312648, 1811824, 2297134, 2625296, 4594268, 8039969, 9188536, 16079938, 18377072, 32159876, 64319752, 128639504]

約数ペア:

[(1, 128639504), (2, 64319752), (4, 32159876), (7, 18377072), (8, 16079938), (14, 9188536), (16, 8039969), (28, 4594268), (49, 2625296), (56, 2297134), (71, 1811824), (98, 1312648), (112, 1148567), (142, 905912), (196, 656324), (284, 452956), (392, 328162), (497, 258832), (568, 226478), (784, 164081), (994, 129416), (1136, 113239), (1988, 64708), (2311, 55664), (3479, 36976), (3976, 32354), (4622, 27832), (6958, 18488), (7952, 16177), (9244, 13916)]