820784

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{1193}}^1$

素因数の和:1244

約数の個数: 20

約数和(自身を含む): 1628616

約数和(自身を除く): 807832

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 1193, 2386, 4772, 9544, 19088, 51299, 102598, 205196, 410392, 820784]

約数ペア:

[(1, 820784), (2, 410392), (4, 205196), (8, 102598), (16, 51299), (43, 19088), (86, 9544), (172, 4772), (344, 2386), (688, 1193)]