16738640

素因数分解:

$2^4\times 5^1\times {\mathrm{209233}}^1$

素因数の和:209246

約数の個数: 20

約数和(自身を含む): 38917524

約数和(自身を除く): 22178884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 209233, 418466, 836932, 1046165, 1673864, 2092330, 3347728, 4184660, 8369320, 16738640]

約数ペア:

[(1, 16738640), (2, 8369320), (4, 4184660), (5, 3347728), (8, 2092330), (10, 1673864), (16, 1046165), (20, 836932), (40, 418466), (80, 209233)]