15665888

素因数分解:

$2^5\times 7^2\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:224

約数の個数: 72

約数和(自身を含む): 36599472

約数和(自身を除く): 20933584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 97, 98, 103, 112, 194, 196, 206, 224, 388, 392, 412, 679, 721, 776, 784, 824, 1358, 1442, 1552, 1568, 1648, 2716, 2884, 3104, 3296, 4753, 5047, 5432, 5768, 9506, 9991, 10094, 10864, 11536, 19012, 19982, 20188, 21728, 23072, 38024, 39964, 40376, 69937, 76048, 79928, 80752, 139874, 152096, 159856, 161504, 279748, 319712, 489559, 559496, 979118, 1118992, 1958236, 2237984, 3916472, 7832944, 15665888]

約数ペア:

[(1, 15665888), (2, 7832944), (4, 3916472), (7, 2237984), (8, 1958236), (14, 1118992), (16, 979118), (28, 559496), (32, 489559), (49, 319712), (56, 279748), (97, 161504), (98, 159856), (103, 152096), (112, 139874), (194, 80752), (196, 79928), (206, 76048), (224, 69937), (388, 40376), (392, 39964), (412, 38024), (679, 23072), (721, 21728), (776, 20188), (784, 19982), (824, 19012), (1358, 11536), (1442, 10864), (1552, 10094), (1568, 9991), (1648, 9506), (2716, 5768), (2884, 5432), (3104, 5047), (3296, 4753)]