687480208

素因数分解:

$2^4\times {\mathrm{353}}^1\times {\mathrm{121721}}^1$

素因数の和:122082

約数の個数: 20

約数和(自身を含む): 1335777228

約数和(自身を除く): 648297020

約数列:

[1, 2, 4, 8, 16, 353, 706, 1412, 2824, 5648, 121721, 243442, 486884, 973768, 1947536, 42967513, 85935026, 171870052, 343740104, 687480208]

約数ペア:

[(1, 687480208), (2, 343740104), (4, 171870052), (8, 85935026), (16, 42967513), (353, 1947536), (706, 973768), (1412, 486884), (2824, 243442), (5648, 121721)]