16687120

素因数分解:

$2^4\times 5^1\times {\mathrm{208589}}^1$

素因数の和:208602

約数の個数: 20

約数和(自身を含む): 38797740

約数和(自身を除く): 22110620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 208589, 417178, 834356, 1042945, 1668712, 2085890, 3337424, 4171780, 8343560, 16687120]

約数ペア:

[(1, 16687120), (2, 8343560), (4, 4171780), (5, 3337424), (8, 2085890), (10, 1668712), (16, 1042945), (20, 834356), (40, 417178), (80, 208589)]