80008945

素因数分解:

$5^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:816

約数の個数: 16

約数和(自身を含む): 97228800

約数和(自身を除く): 17219855

約数列:

[1, 5, 191, 199, 421, 955, 995, 2105, 38009, 80411, 83779, 190045, 402055, 418895, 16001789, 80008945]

約数ペア:

[(1, 80008945), (5, 16001789), (191, 418895), (199, 402055), (421, 190045), (955, 83779), (995, 80411), (2105, 38009)]