245848239

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:150

約数の個数: 144

約数和(自身を含む): 488822880

約数和(自身を除く): 242974641

約数列:

[1, 3, 7, 9, 13, 19, 21, 37, 39, 49, 57, 61, 63, 91, 111, 117, 133, 147, 171, 183, 247, 259, 273, 333, 399, 427, 441, 481, 549, 637, 703, 741, 777, 793, 819, 931, 1159, 1197, 1281, 1443, 1729, 1813, 1911, 2109, 2223, 2257, 2331, 2379, 2793, 2989, 3367, 3477, 3843, 4329, 4921, 5187, 5439, 5551, 5733, 6327, 6771, 7137, 8113, 8379, 8967, 9139, 10101, 10431, 12103, 14763, 15067, 15561, 15799, 16317, 16653, 20313, 23569, 24339, 26901, 27417, 29341, 30303, 34447, 36309, 38857, 42883, 44289, 45201, 47397, 49959, 56791, 63973, 70707, 73017, 82251, 88023, 103341, 105469, 108927, 110593, 116571, 128649, 135603, 142191, 170373, 191919, 205387, 212121, 264069, 300181, 310023, 316407, 331779, 349713, 385947, 447811, 511119, 557479, 575757, 616161, 738283, 900543, 949221, 995337, 1343433, 1437709, 1672437, 1848483, 2101267, 2214849, 2701629, 3902353, 4030299, 4313127, 5017311, 6303801, 6644547, 11707059, 12939381, 18911403, 27316471, 35121177, 81949413, 245848239]

約数ペア:

[(1, 245848239), (3, 81949413), (7, 35121177), (9, 27316471), (13, 18911403), (19, 12939381), (21, 11707059), (37, 6644547), (39, 6303801), (49, 5017311), (57, 4313127), (61, 4030299), (63, 3902353), (91, 2701629), (111, 2214849), (117, 2101267), (133, 1848483), (147, 1672437), (171, 1437709), (183, 1343433), (247, 995337), (259, 949221), (273, 900543), (333, 738283), (399, 616161), (427, 575757), (441, 557479), (481, 511119), (549, 447811), (637, 385947), (703, 349713), (741, 331779), (777, 316407), (793, 310023), (819, 300181), (931, 264069), (1159, 212121), (1197, 205387), (1281, 191919), (1443, 170373), (1729, 142191), (1813, 135603), (1911, 128649), (2109, 116571), (2223, 110593), (2257, 108927), (2331, 105469), (2379, 103341), (2793, 88023), (2989, 82251), (3367, 73017), (3477, 70707), (3843, 63973), (4329, 56791), (4921, 49959), (5187, 47397), (5439, 45201), (5551, 44289), (5733, 42883), (6327, 38857), (6771, 36309), (7137, 34447), (8113, 30303), (8379, 29341), (8967, 27417), (9139, 26901), (10101, 24339), (10431, 23569), (12103, 20313), (14763, 16653), (15067, 16317), (15561, 15799)]