27291267920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{49177}}^1$

素因数の和:50188

約数の個数: 80

約数和(自身を含む): 72591449088

約数和(自身を除く): 45300181168

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 991, 1982, 3964, 4955, 6937, 7928, 9910, 13874, 15856, 19820, 27748, 34685, 39640, 49177, 55496, 69370, 79280, 98354, 110992, 138740, 196708, 245885, 277480, 344239, 393416, 491770, 554960, 688478, 786832, 983540, 1376956, 1721195, 1967080, 2753912, 3442390, 3934160, 5507824, 6884780, 13769560, 27539120, 48734407, 97468814, 194937628, 243672035, 341140849, 389875256, 487344070, 682281698, 779750512, 974688140, 1364563396, 1705704245, 1949376280, 2729126792, 3411408490, 3898752560, 5458253584, 6822816980, 13645633960, 27291267920]

約数ペア:

[(1, 27291267920), (2, 13645633960), (4, 6822816980), (5, 5458253584), (7, 3898752560), (8, 3411408490), (10, 2729126792), (14, 1949376280), (16, 1705704245), (20, 1364563396), (28, 974688140), (35, 779750512), (40, 682281698), (56, 487344070), (70, 389875256), (80, 341140849), (112, 243672035), (140, 194937628), (280, 97468814), (560, 48734407), (991, 27539120), (1982, 13769560), (3964, 6884780), (4955, 5507824), (6937, 3934160), (7928, 3442390), (9910, 2753912), (13874, 1967080), (15856, 1721195), (19820, 1376956), (27748, 983540), (34685, 786832), (39640, 688478), (49177, 554960), (55496, 491770), (69370, 393416), (79280, 344239), (98354, 277480), (110992, 245885), (138740, 196708)]