81609905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{5531}}^1$

素因数の和:5776

約数の個数: 16

約数和(自身を含む): 105948864

約数和(自身を除く): 24338959

約数列:

[1, 5, 13, 65, 227, 1135, 2951, 5531, 14755, 27655, 71903, 359515, 1255537, 6277685, 16321981, 81609905]

約数ペア:

[(1, 81609905), (5, 16321981), (13, 6277685), (65, 1255537), (227, 359515), (1135, 71903), (2951, 27655), (5531, 14755)]