16842640

素因数分解:

$2^4\times 5^1\times {\mathrm{210533}}^1$

素因数の和:210546

約数の個数: 20

約数和(自身を含む): 39159324

約数和(自身を除く): 22316684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 210533, 421066, 842132, 1052665, 1684264, 2105330, 3368528, 4210660, 8421320, 16842640]

約数ペア:

[(1, 16842640), (2, 8421320), (4, 4210660), (5, 3368528), (8, 2105330), (10, 1684264), (16, 1052665), (20, 842132), (40, 421066), (80, 210533)]