20354075

素因数分解:

$5^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1087}}^1$

素因数の和:1211

約数の個数: 24

約数和(自身を含む): 29140992

約数和(自身を除く): 8786917

約数列:

[1, 5, 7, 25, 35, 107, 175, 535, 749, 1087, 2675, 3745, 5435, 7609, 18725, 27175, 38045, 116309, 190225, 581545, 814163, 2907725, 4070815, 20354075]

約数ペア:

[(1, 20354075), (5, 4070815), (7, 2907725), (25, 814163), (35, 581545), (107, 190225), (175, 116309), (535, 38045), (749, 27175), (1087, 18725), (2675, 7609), (3745, 5435)]