20512782340

素因数分解:

$2^2\times 5^1\times {\mathrm{20879}}^1\times {\mathrm{49123}}^1$

素因数の和:70011

約数の個数: 24

約数和(自身を含む): 43079783040

約数和(自身を除く): 22567000700

約数列:

[1, 2, 4, 5, 10, 20, 20879, 41758, 49123, 83516, 98246, 104395, 196492, 208790, 245615, 417580, 491230, 982460, 1025639117, 2051278234, 4102556468, 5128195585, 10256391170, 20512782340]

約数ペア:

[(1, 20512782340), (2, 10256391170), (4, 5128195585), (5, 4102556468), (10, 2051278234), (20, 1025639117), (20879, 982460), (41758, 491230), (49123, 417580), (83516, 245615), (98246, 208790), (104395, 196492)]