256979072

素因数分解:

$2^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{16871}}^1$

素因数の和:16909

約数の個数: 64

約数和(自身を含む): 619539840

約数和(自身を除く): 362560768

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 224, 238, 272, 448, 476, 544, 896, 952, 1088, 1904, 2176, 3808, 7616, 15232, 16871, 33742, 67484, 118097, 134968, 236194, 269936, 286807, 472388, 539872, 573614, 944776, 1079744, 1147228, 1889552, 2007649, 2159488, 2294456, 3779104, 4015298, 4588912, 7558208, 8030596, 9177824, 15116416, 16061192, 18355648, 32122384, 36711296, 64244768, 128489536, 256979072]

約数ペア:

[(1, 256979072), (2, 128489536), (4, 64244768), (7, 36711296), (8, 32122384), (14, 18355648), (16, 16061192), (17, 15116416), (28, 9177824), (32, 8030596), (34, 7558208), (56, 4588912), (64, 4015298), (68, 3779104), (112, 2294456), (119, 2159488), (128, 2007649), (136, 1889552), (224, 1147228), (238, 1079744), (272, 944776), (448, 573614), (476, 539872), (544, 472388), (896, 286807), (952, 269936), (1088, 236194), (1904, 134968), (2176, 118097), (3808, 67484), (7616, 33742), (15232, 16871)]