80820865

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{1889}}^1$

素因数の和:2136

約数の個数: 16

約数和(自身を含む): 99792000

約数和(自身を除く): 18971135

約数列:

[1, 5, 43, 199, 215, 995, 1889, 8557, 9445, 42785, 81227, 375911, 406135, 1879555, 16164173, 80820865]

約数ペア:

[(1, 80820865), (5, 16164173), (43, 1879555), (199, 406135), (215, 375911), (995, 81227), (1889, 42785), (8557, 9445)]