20654740

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{5407}}^1$

素因数の和:5607

約数の個数: 24

約数和(自身を含む): 43610112

約数和(自身を除く): 22955372

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 5407, 10814, 21628, 27035, 54070, 108140, 1032737, 2065474, 4130948, 5163685, 10327370, 20654740]

約数ペア:

[(1, 20654740), (2, 10327370), (4, 5163685), (5, 4130948), (10, 2065474), (20, 1032737), (191, 108140), (382, 54070), (764, 27035), (955, 21628), (1910, 10814), (3820, 5407)]