1668173660

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{189997}}^1$

素因数の和:190445

約数の個数: 24

約数和(自身を含む): 3511163040

約数和(自身を除く): 1842989380

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8780, 189997, 379994, 759988, 949985, 1899970, 3799940, 83408683, 166817366, 333634732, 417043415, 834086830, 1668173660]

約数ペア:

[(1, 1668173660), (2, 834086830), (4, 417043415), (5, 333634732), (10, 166817366), (20, 83408683), (439, 3799940), (878, 1899970), (1756, 949985), (2195, 759988), (4390, 379994), (8780, 189997)]