80674640

素因数分解:

$2^4\times 5^1\times {\mathrm{1008433}}^1$

素因数の和:1008446

約数の個数: 20

約数和(自身を含む): 187568724

約数和(自身を除く): 106894084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1008433, 2016866, 4033732, 5042165, 8067464, 10084330, 16134928, 20168660, 40337320, 80674640]

約数ペア:

[(1, 80674640), (2, 40337320), (4, 20168660), (5, 16134928), (8, 10084330), (10, 8067464), (16, 5042165), (20, 4033732), (40, 2016866), (80, 1008433)]