18988900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{27127}}^1$

素因数の和:27148

約数の個数: 36

約数和(自身を含む): 47094208

約数和(自身を除く): 28105308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 27127, 54254, 108508, 135635, 189889, 271270, 379778, 542540, 678175, 759556, 949445, 1356350, 1898890, 2712700, 3797780, 4747225, 9494450, 18988900]

約数ペア:

[(1, 18988900), (2, 9494450), (4, 4747225), (5, 3797780), (7, 2712700), (10, 1898890), (14, 1356350), (20, 949445), (25, 759556), (28, 678175), (35, 542540), (50, 379778), (70, 271270), (100, 189889), (140, 135635), (175, 108508), (350, 54254), (700, 27127)]