81020485

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{178067}}^1$

素因数の和:178092

約数の個数: 16

約数和(自身を含む): 119661696

約数和(自身を除く): 38641211

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 178067, 890335, 1246469, 2314871, 6232345, 11574355, 16204097, 81020485]

約数ペア:

[(1, 81020485), (5, 16204097), (7, 11574355), (13, 6232345), (35, 2314871), (65, 1246469), (91, 890335), (455, 178067)]