20655420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{344257}}^1$

素因数の和:344269

約数の個数: 24

約数和(自身を含む): 57835344

約数和(自身を除く): 37179924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 344257, 688514, 1032771, 1377028, 1721285, 2065542, 3442570, 4131084, 5163855, 6885140, 10327710, 20655420]

約数ペア:

[(1, 20655420), (2, 10327710), (3, 6885140), (4, 5163855), (5, 4131084), (6, 3442570), (10, 2065542), (12, 1721285), (15, 1377028), (20, 1032771), (30, 688514), (60, 344257)]