81997888

素因数分解:

$2^6\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1777}}^1$

素因数の和:1899

約数の個数: 56

約数和(自身を含む): 187870592

約数和(自身を除く): 105872704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 103, 112, 206, 224, 412, 448, 721, 824, 1442, 1648, 1777, 2884, 3296, 3554, 5768, 6592, 7108, 11536, 12439, 14216, 23072, 24878, 28432, 46144, 49756, 56864, 99512, 113728, 183031, 199024, 366062, 398048, 732124, 796096, 1281217, 1464248, 2562434, 2928496, 5124868, 5856992, 10249736, 11713984, 20499472, 40998944, 81997888]

約数ペア:

[(1, 81997888), (2, 40998944), (4, 20499472), (7, 11713984), (8, 10249736), (14, 5856992), (16, 5124868), (28, 2928496), (32, 2562434), (56, 1464248), (64, 1281217), (103, 796096), (112, 732124), (206, 398048), (224, 366062), (412, 199024), (448, 183031), (721, 113728), (824, 99512), (1442, 56864), (1648, 49756), (1777, 46144), (2884, 28432), (3296, 24878), (3554, 23072), (5768, 14216), (6592, 12439), (7108, 11536)]