40402100

素因数分解:

$2^2\times 5^2\times {\mathrm{404021}}^1$

素因数の和:404035

約数の個数: 18

約数和(自身を含む): 87672774

約数和(自身を除く): 47270674

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 404021, 808042, 1616084, 2020105, 4040210, 8080420, 10100525, 20201050, 40402100]

約数ペア:

[(1, 40402100), (2, 20201050), (4, 10100525), (5, 8080420), (10, 4040210), (20, 2020105), (25, 1616084), (50, 808042), (100, 404021)]