205672100

素因数分解:

$2^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{18869}}^1$

素因数の和:18992

約数の個数: 36

約数和(自身を含む): 450426900

約数和(自身を除く): 244754800

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 218, 436, 545, 1090, 2180, 2725, 5450, 10900, 18869, 37738, 75476, 94345, 188690, 377380, 471725, 943450, 1886900, 2056721, 4113442, 8226884, 10283605, 20567210, 41134420, 51418025, 102836050, 205672100]

約数ペア:

[(1, 205672100), (2, 102836050), (4, 51418025), (5, 41134420), (10, 20567210), (20, 10283605), (25, 8226884), (50, 4113442), (100, 2056721), (109, 1886900), (218, 943450), (436, 471725), (545, 377380), (1090, 188690), (2180, 94345), (2725, 75476), (5450, 37738), (10900, 18869)]