646016

素因数分解:

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

素因数の和:131

約数の個数: 48

約数和(自身を含む): 1511640

約数和(自身を除く): 865624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 103, 112, 128, 196, 206, 224, 392, 412, 448, 721, 784, 824, 896, 1442, 1568, 1648, 2884, 3136, 3296, 5047, 5768, 6272, 6592, 10094, 11536, 13184, 20188, 23072, 40376, 46144, 80752, 92288, 161504, 323008, 646016]

約数ペア:

[(1, 646016), (2, 323008), (4, 161504), (7, 92288), (8, 80752), (14, 46144), (16, 40376), (28, 23072), (32, 20188), (49, 13184), (56, 11536), (64, 10094), (98, 6592), (103, 6272), (112, 5768), (128, 5047), (196, 3296), (206, 3136), (224, 2884), (392, 1648), (412, 1568), (448, 1442), (721, 896), (784, 824)]