81457964

素因数分解:

$2^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{16073}}^1$

素因数の和:16265

約数の個数: 24

約数和(自身を含む): 163826208

約数和(自身を除く): 82368244

約数列:

[1, 2, 4, 7, 14, 28, 181, 362, 724, 1267, 2534, 5068, 16073, 32146, 64292, 112511, 225022, 450044, 2909213, 5818426, 11636852, 20364491, 40728982, 81457964]

約数ペア:

[(1, 81457964), (2, 40728982), (4, 20364491), (7, 11636852), (14, 5818426), (28, 2909213), (181, 450044), (362, 225022), (724, 112511), (1267, 64292), (2534, 32146), (5068, 16073)]