1399120

素因数分解:

$2^4\times 5^1\times {\mathrm{17489}}^1$

素因数の和:17502

約数の個数: 20

約数和(自身を含む): 3253140

約数和(自身を除く): 1854020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 17489, 34978, 69956, 87445, 139912, 174890, 279824, 349780, 699560, 1399120]

約数ペア:

[(1, 1399120), (2, 699560), (4, 349780), (5, 279824), (8, 174890), (10, 139912), (16, 87445), (20, 69956), (40, 34978), (80, 17489)]