77678710

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{18451}}^1$

素因数の和:18879

約数の個数: 16

約数和(自身を含む): 140161392

約数和(自身を除く): 62482682

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 18451, 36902, 92255, 184510, 7767871, 15535742, 38839355, 77678710]

約数ペア:

[(1, 77678710), (2, 38839355), (5, 15535742), (10, 7767871), (421, 184510), (842, 92255), (2105, 36902), (4210, 18451)]