205654905

素因数分解:

$3^2\times 5^1\times {\mathrm{787}}^1\times {\mathrm{5807}}^1$

素因数の和:6605

約数の個数: 24

約数和(自身を含む): 356982912

約数和(自身を除く): 151328007

約数列:

[1, 3, 5, 9, 15, 45, 787, 2361, 3935, 5807, 7083, 11805, 17421, 29035, 35415, 52263, 87105, 261315, 4570109, 13710327, 22850545, 41130981, 68551635, 205654905]

約数ペア:

[(1, 205654905), (3, 68551635), (5, 41130981), (9, 22850545), (15, 13710327), (45, 4570109), (787, 261315), (2361, 87105), (3935, 52263), (5807, 35415), (7083, 29035), (11805, 17421)]