12720475

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{11833}}^1$

素因数の和:11886

約数の個数: 12

約数和(自身を含む): 16141576

約数和(自身を除く): 3421101

約数列:

[1, 5, 25, 43, 215, 1075, 11833, 59165, 295825, 508819, 2544095, 12720475]

約数ペア:

[(1, 12720475), (5, 2544095), (25, 508819), (43, 295825), (215, 59165), (1075, 11833)]