80974655

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{20269}}^1$

素因数の和:20338

約数の個数: 16

約数和(自身を含む): 105079680

約数和(自身を除く): 24105025

約数列:

[1, 5, 17, 47, 85, 235, 799, 3995, 20269, 101345, 344573, 952643, 1722865, 4763215, 16194931, 80974655]

約数ペア:

[(1, 80974655), (5, 16194931), (17, 4763215), (47, 1722865), (85, 952643), (235, 344573), (799, 101345), (3995, 20269)]