20494015

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{479}}^1$

素因数の和:726

約数の個数: 16

約数和(自身を含む): 25344000

約数和(自身を除く): 4849985

約数列:

[1, 5, 43, 199, 215, 479, 995, 2395, 8557, 20597, 42785, 95321, 102985, 476605, 4098803, 20494015]

約数ペア:

[(1, 20494015), (5, 4098803), (43, 476605), (199, 102985), (215, 95321), (479, 42785), (995, 20597), (2395, 8557)]