81532495

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{20879}}^1$

素因数の和:20966

約数の個数: 16

約数和(自身を含む): 108241920

約数和(自身を除く): 26709425

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 20879, 104395, 229669, 1148345, 1482409, 7412045, 16306499, 81532495]

約数ペア:

[(1, 81532495), (5, 16306499), (11, 7412045), (55, 1482409), (71, 1148345), (355, 229669), (781, 104395), (3905, 20879)]