81811155

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{126839}}^1$

素因数の和:126890

約数の個数: 16

約数和(自身を含む): 133943040

約数和(自身を除く): 52131885

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 126839, 380517, 634195, 1902585, 5454077, 16362231, 27270385, 81811155]

約数ペア:

[(1, 81811155), (3, 27270385), (5, 16362231), (15, 5454077), (43, 1902585), (129, 634195), (215, 380517), (645, 126839)]