16798640

素因数分解:

$2^4\times 5^1\times {\mathrm{209983}}^1$

素因数の和:209996

約数の個数: 20

約数和(自身を含む): 39057024

約数和(自身を除く): 22258384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 209983, 419966, 839932, 1049915, 1679864, 2099830, 3359728, 4199660, 8399320, 16798640]

約数ペア:

[(1, 16798640), (2, 8399320), (4, 4199660), (5, 3359728), (8, 2099830), (10, 1679864), (16, 1049915), (20, 839932), (40, 419966), (80, 209983)]