66719860

素因数分解:

$2^2\times 5^1\times {\mathrm{1783}}^1\times {\mathrm{1871}}^1$

素因数の和:3663

約数の個数: 24

約数和(自身を含む): 140265216

約数和(自身を除く): 73545356

約数列:

[1, 2, 4, 5, 10, 20, 1783, 1871, 3566, 3742, 7132, 7484, 8915, 9355, 17830, 18710, 35660, 37420, 3335993, 6671986, 13343972, 16679965, 33359930, 66719860]

約数ペア:

[(1, 66719860), (2, 33359930), (4, 16679965), (5, 13343972), (10, 6671986), (20, 3335993), (1783, 37420), (1871, 35660), (3566, 18710), (3742, 17830), (7132, 9355), (7484, 8915)]