256217984

素因数分解:

$2^7\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:340

約数の個数: 96

約数和(自身を含む): 571399920

約数和(自身を除く): 315181936

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 71, 88, 121, 128, 142, 176, 233, 242, 284, 352, 466, 484, 568, 704, 781, 932, 968, 1136, 1408, 1562, 1864, 1936, 2272, 2563, 3124, 3728, 3872, 4544, 5126, 6248, 7456, 7744, 8591, 9088, 10252, 12496, 14912, 15488, 16543, 17182, 20504, 24992, 28193, 29824, 33086, 34364, 41008, 49984, 56386, 66172, 68728, 82016, 99968, 112772, 132344, 137456, 164032, 181973, 225544, 264688, 274912, 328064, 363946, 451088, 529376, 549824, 727892, 902176, 1058752, 1099648, 1455784, 1804352, 2001703, 2117504, 2911568, 3608704, 4003406, 5823136, 8006812, 11646272, 16013624, 23292544, 32027248, 64054496, 128108992, 256217984]

約数ペア:

[(1, 256217984), (2, 128108992), (4, 64054496), (8, 32027248), (11, 23292544), (16, 16013624), (22, 11646272), (32, 8006812), (44, 5823136), (64, 4003406), (71, 3608704), (88, 2911568), (121, 2117504), (128, 2001703), (142, 1804352), (176, 1455784), (233, 1099648), (242, 1058752), (284, 902176), (352, 727892), (466, 549824), (484, 529376), (568, 451088), (704, 363946), (781, 328064), (932, 274912), (968, 264688), (1136, 225544), (1408, 181973), (1562, 164032), (1864, 137456), (1936, 132344), (2272, 112772), (2563, 99968), (3124, 82016), (3728, 68728), (3872, 66172), (4544, 56386), (5126, 49984), (6248, 41008), (7456, 34364), (7744, 33086), (8591, 29824), (9088, 28193), (10252, 24992), (12496, 20504), (14912, 17182), (15488, 16543)]