12840865

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7951}}^1$

素因数の和:7992

約数の個数: 16

約数和(自身を含む): 17176320

約数和(自身を除く): 4335455

約数列:

[1, 5, 17, 19, 85, 95, 323, 1615, 7951, 39755, 135167, 151069, 675835, 755345, 2568173, 12840865]

約数ペア:

[(1, 12840865), (5, 2568173), (17, 755345), (19, 675835), (85, 151069), (95, 135167), (323, 39755), (1615, 7951)]