80688620

素因数分解:

$2^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{10993}}^1$

素因数の和:11369

約数の個数: 24

約数和(自身を含む): 169923264

約数和(自身を除く): 89234644

約数列:

[1, 2, 4, 5, 10, 20, 367, 734, 1468, 1835, 3670, 7340, 10993, 21986, 43972, 54965, 109930, 219860, 4034431, 8068862, 16137724, 20172155, 40344310, 80688620]

約数ペア:

[(1, 80688620), (2, 40344310), (4, 20172155), (5, 16137724), (10, 8068862), (20, 4034431), (367, 219860), (734, 109930), (1468, 54965), (1835, 43972), (3670, 21986), (7340, 10993)]