81391385

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{4523}}^1$

素因数の和:4648

約数の個数: 16

約数和(自身を含む): 100975680

約数和(自身を除く): 19584295

約数列:

[1, 5, 59, 61, 295, 305, 3599, 4523, 17995, 22615, 266857, 275903, 1334285, 1379515, 16278277, 81391385]

約数ペア:

[(1, 81391385), (5, 16278277), (59, 1379515), (61, 1334285), (295, 275903), (305, 266857), (3599, 22615), (4523, 17995)]