28749056

素因数分解:

$2^8\times 7^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:347

約数の個数: 72

約数和(自身を含む): 66912384

約数和(自身を除く): 38163328

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 64, 112, 122, 128, 224, 244, 256, 263, 427, 448, 488, 526, 854, 896, 976, 1052, 1708, 1792, 1841, 1952, 2104, 3416, 3682, 3904, 4208, 6832, 7364, 7808, 8416, 13664, 14728, 15616, 16043, 16832, 27328, 29456, 32086, 33664, 54656, 58912, 64172, 67328, 109312, 112301, 117824, 128344, 224602, 235648, 256688, 449204, 471296, 513376, 898408, 1026752, 1796816, 2053504, 3593632, 4107008, 7187264, 14374528, 28749056]

約数ペア:

[(1, 28749056), (2, 14374528), (4, 7187264), (7, 4107008), (8, 3593632), (14, 2053504), (16, 1796816), (28, 1026752), (32, 898408), (56, 513376), (61, 471296), (64, 449204), (112, 256688), (122, 235648), (128, 224602), (224, 128344), (244, 117824), (256, 112301), (263, 109312), (427, 67328), (448, 64172), (488, 58912), (526, 54656), (854, 33664), (896, 32086), (976, 29456), (1052, 27328), (1708, 16832), (1792, 16043), (1841, 15616), (1952, 14728), (2104, 13664), (3416, 8416), (3682, 7808), (3904, 7364), (4208, 6832)]