81263168

素因数分解:

$2^6\times 7^2\times {\mathrm{25913}}^1$

素因数の和:25939

約数の個数: 42

約数和(自身を含む): 187591446

約数和(自身を除く): 106328278

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 25913, 51826, 103652, 181391, 207304, 362782, 414608, 725564, 829216, 1269737, 1451128, 1658432, 2539474, 2902256, 5078948, 5804512, 10157896, 11609024, 20315792, 40631584, 81263168]

約数ペア:

[(1, 81263168), (2, 40631584), (4, 20315792), (7, 11609024), (8, 10157896), (14, 5804512), (16, 5078948), (28, 2902256), (32, 2539474), (49, 1658432), (56, 1451128), (64, 1269737), (98, 829216), (112, 725564), (196, 414608), (224, 362782), (392, 207304), (448, 181391), (784, 103652), (1568, 51826), (3136, 25913)]