720291237

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{78643}}^1$

素因数の和:78760

約数の個数: 16

約数和(自身を含む): 996576768

約数和(自身を除く): 276285531

約数列:

[1, 3, 43, 71, 129, 213, 3053, 9159, 78643, 235929, 3381649, 5583653, 10144947, 16750959, 240097079, 720291237]

約数ペア:

[(1, 720291237), (3, 240097079), (43, 16750959), (71, 10144947), (129, 5583653), (213, 3381649), (3053, 235929), (9159, 78643)]