81138568

素因数分解:

$2^3\times 7^1\times {\mathrm{1448903}}^1$

素因数の和:1448916

約数の個数: 16

約数和(自身を含む): 173868480

約数和(自身を除く): 92729912

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1448903, 2897806, 5795612, 10142321, 11591224, 20284642, 40569284, 81138568]

約数ペア:

[(1, 81138568), (2, 40569284), (4, 20284642), (7, 11591224), (8, 10142321), (14, 5795612), (28, 2897806), (56, 1448903)]