80205147

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{90017}}^1$

素因数の和:90040

約数の個数: 20

約数和(自身を含む): 130706136

約数和(自身を除く): 50500989

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 90017, 270051, 810153, 990187, 2430459, 2970561, 7291377, 8911683, 26735049, 80205147]

約数ペア:

[(1, 80205147), (3, 26735049), (9, 8911683), (11, 7291377), (27, 2970561), (33, 2430459), (81, 990187), (99, 810153), (297, 270051), (891, 90017)]