66086780

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{4999}}^1$

素因数の和:5669

約数の個数: 24

約数和(自身を含む): 139020000

約数和(自身を除く): 72933220

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 2644, 3305, 4999, 6610, 9998, 13220, 19996, 24995, 49990, 99980, 3304339, 6608678, 13217356, 16521695, 33043390, 66086780]

約数ペア:

[(1, 66086780), (2, 33043390), (4, 16521695), (5, 13217356), (10, 6608678), (20, 3304339), (661, 99980), (1322, 49990), (2644, 24995), (3305, 19996), (4999, 13220), (6610, 9998)]