20672512

素因数分解:

$2^{12}\times 7^2\times {\mathrm{103}}^1$

素因数の和:141

約数の個数: 78

約数和(自身を含む): 48556248

約数和(自身を除く): 27883736

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 103, 112, 128, 196, 206, 224, 256, 392, 412, 448, 512, 721, 784, 824, 896, 1024, 1442, 1568, 1648, 1792, 2048, 2884, 3136, 3296, 3584, 4096, 5047, 5768, 6272, 6592, 7168, 10094, 11536, 12544, 13184, 14336, 20188, 23072, 25088, 26368, 28672, 40376, 46144, 50176, 52736, 80752, 92288, 100352, 105472, 161504, 184576, 200704, 210944, 323008, 369152, 421888, 646016, 738304, 1292032, 1476608, 2584064, 2953216, 5168128, 10336256, 20672512]

約数ペア:

[(1, 20672512), (2, 10336256), (4, 5168128), (7, 2953216), (8, 2584064), (14, 1476608), (16, 1292032), (28, 738304), (32, 646016), (49, 421888), (56, 369152), (64, 323008), (98, 210944), (103, 200704), (112, 184576), (128, 161504), (196, 105472), (206, 100352), (224, 92288), (256, 80752), (392, 52736), (412, 50176), (448, 46144), (512, 40376), (721, 28672), (784, 26368), (824, 25088), (896, 23072), (1024, 20188), (1442, 14336), (1568, 13184), (1648, 12544), (1792, 11536), (2048, 10094), (2884, 7168), (3136, 6592), (3296, 6272), (3584, 5768), (4096, 5047)]