81975905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{40283}}^1$

素因数の和:40336

約数の個数: 16

約数和(自身を含む): 110217024

約数和(自身を除く): 28241119

約数列:

[1, 5, 11, 37, 55, 185, 407, 2035, 40283, 201415, 443113, 1490471, 2215565, 7452355, 16395181, 81975905]

約数ペア:

[(1, 81975905), (5, 16395181), (11, 7452355), (37, 2215565), (55, 1490471), (185, 443113), (407, 201415), (2035, 40283)]