20611700

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{3889}}^1$

素因数の和:3956

約数の個数: 36

約数和(自身を含む): 45583020

約数和(自身を除く): 24971320

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 212, 265, 530, 1060, 1325, 2650, 3889, 5300, 7778, 15556, 19445, 38890, 77780, 97225, 194450, 206117, 388900, 412234, 824468, 1030585, 2061170, 4122340, 5152925, 10305850, 20611700]

約数ペア:

[(1, 20611700), (2, 10305850), (4, 5152925), (5, 4122340), (10, 2061170), (20, 1030585), (25, 824468), (50, 412234), (53, 388900), (100, 206117), (106, 194450), (212, 97225), (265, 77780), (530, 38890), (1060, 19445), (1325, 15556), (2650, 7778), (3889, 5300)]