20958220

素因数分解:

$2^2\times 5^1\times {\mathrm{839}}^1\times {\mathrm{1249}}^1$

素因数の和:2097

約数の個数: 24

約数和(自身を含む): 44100000

約数和(自身を除く): 23141780

約数列:

[1, 2, 4, 5, 10, 20, 839, 1249, 1678, 2498, 3356, 4195, 4996, 6245, 8390, 12490, 16780, 24980, 1047911, 2095822, 4191644, 5239555, 10479110, 20958220]

約数ペア:

[(1, 20958220), (2, 10479110), (4, 5239555), (5, 4191644), (10, 2095822), (20, 1047911), (839, 24980), (1249, 16780), (1678, 12490), (2498, 8390), (3356, 6245), (4195, 4996)]