1380456080

素因数分解:

$2^4\times 5^1\times {\mathrm{17255701}}^1$

素因数の和:17255714

約数の個数: 20

約数和(自身を含む): 3209560572

約数和(自身を除く): 1829104492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 17255701, 34511402, 69022804, 86278505, 138045608, 172557010, 276091216, 345114020, 690228040, 1380456080]

約数ペア:

[(1, 1380456080), (2, 690228040), (4, 345114020), (5, 276091216), (8, 172557010), (10, 138045608), (16, 86278505), (20, 69022804), (40, 34511402), (80, 17255701)]