12987745

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3251}}^1$

素因数の和:3320

約数の個数: 16

約数和(自身を含む): 16858368

約数和(自身を除く): 3870623

約数列:

[1, 5, 17, 47, 85, 235, 799, 3251, 3995, 16255, 55267, 152797, 276335, 763985, 2597549, 12987745]

約数ペア:

[(1, 12987745), (5, 2597549), (17, 763985), (47, 276335), (85, 152797), (235, 55267), (799, 16255), (3251, 3995)]