80681965

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{177323}}^1$

素因数の和:177348

約数の個数: 16

約数和(自身を含む): 119161728

約数和(自身を除く): 38479763

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 177323, 886615, 1241261, 2305199, 6206305, 11525995, 16136393, 80681965]

約数ペア:

[(1, 80681965), (5, 16136393), (7, 11525995), (13, 6206305), (35, 2305199), (65, 1241261), (91, 886615), (455, 177323)]