81174220

素因数分解:

$2^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{10709}}^1$

素因数の和:11097

約数の個数: 24

約数和(自身を含む): 170931600

約数和(自身を除く): 89757380

約数列:

[1, 2, 4, 5, 10, 20, 379, 758, 1516, 1895, 3790, 7580, 10709, 21418, 42836, 53545, 107090, 214180, 4058711, 8117422, 16234844, 20293555, 40587110, 81174220]

約数ペア:

[(1, 81174220), (2, 40587110), (4, 20293555), (5, 16234844), (10, 8117422), (20, 4058711), (379, 214180), (758, 107090), (1516, 53545), (1895, 42836), (3790, 21418), (7580, 10709)]