81209848

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{247591}}^1$

素因数の和:247638

約数の個数: 16

約数和(自身を含む): 155982960

約数和(自身を除く): 74773112

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 247591, 495182, 990364, 1980728, 10151231, 20302462, 40604924, 81209848]

約数ペア:

[(1, 81209848), (2, 40604924), (4, 20302462), (8, 10151231), (41, 1980728), (82, 990364), (164, 495182), (328, 247591)]