81615935

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{2731}}^1$

素因数の和:2918

約数の個数: 16

約数和(自身を含む): 100974720

約数和(自身を除く): 19358785

約数列:

[1, 5, 43, 139, 215, 695, 2731, 5977, 13655, 29885, 117433, 379609, 587165, 1898045, 16323187, 81615935]

約数ペア:

[(1, 81615935), (5, 16323187), (43, 1898045), (139, 587165), (215, 379609), (695, 117433), (2731, 29885), (5977, 13655)]