81334285

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{1901}}^1$

素因数の和:2148

約数の個数: 16

約数和(自身を含む): 100425600

約数和(自身を除く): 19091315

約数列:

[1, 5, 43, 199, 215, 995, 1901, 8557, 9505, 42785, 81743, 378299, 408715, 1891495, 16266857, 81334285]

約数ペア:

[(1, 81334285), (5, 16266857), (43, 1891495), (199, 408715), (215, 378299), (995, 81743), (1901, 42785), (8557, 9505)]