81006905

素因数分解:

$5^1\times 7^1\times {\mathrm{1109}}^1\times {\mathrm{2087}}^1$

素因数の和:3208

約数の個数: 16

約数和(自身を含む): 111248640

約数和(自身を除く): 30241735

約数列:

[1, 5, 7, 35, 1109, 2087, 5545, 7763, 10435, 14609, 38815, 73045, 2314483, 11572415, 16201381, 81006905]

約数ペア:

[(1, 81006905), (5, 16201381), (7, 11572415), (35, 2314483), (1109, 73045), (2087, 38815), (5545, 14609), (7763, 10435)]