81239536

素因数分解:

$2^4\times 7^1\times {\mathrm{107}}^1\times {\mathrm{6779}}^1$

素因数の和:6901

約数の個数: 40

約数和(自身を含む): 181595520

約数和(自身を除く): 100355984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 107, 112, 214, 428, 749, 856, 1498, 1712, 2996, 5992, 6779, 11984, 13558, 27116, 47453, 54232, 94906, 108464, 189812, 379624, 725353, 759248, 1450706, 2901412, 5077471, 5802824, 10154942, 11605648, 20309884, 40619768, 81239536]

約数ペア:

[(1, 81239536), (2, 40619768), (4, 20309884), (7, 11605648), (8, 10154942), (14, 5802824), (16, 5077471), (28, 2901412), (56, 1450706), (107, 759248), (112, 725353), (214, 379624), (428, 189812), (749, 108464), (856, 94906), (1498, 54232), (1712, 47453), (2996, 27116), (5992, 13558), (6779, 11984)]