134421680

素因数分解:

$2^4\times 5^1\times {\mathrm{1680271}}^1$

素因数の和:1680284

約数の個数: 20

約数和(自身を含む): 312530592

約数和(自身を除く): 178108912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1680271, 3360542, 6721084, 8401355, 13442168, 16802710, 26884336, 33605420, 67210840, 134421680]

約数ペア:

[(1, 134421680), (2, 67210840), (4, 33605420), (5, 26884336), (8, 16802710), (10, 13442168), (16, 8401355), (20, 6721084), (40, 3360542), (80, 1680271)]