1689788680

素因数分解:

$2^3\times 5^1\times {\mathrm{42244717}}^1$

素因数の和:42244728

約数の個数: 16

約数和(自身を含む): 3802024620

約数和(自身を除く): 2112235940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 42244717, 84489434, 168978868, 211223585, 337957736, 422447170, 844894340, 1689788680]

約数ペア:

[(1, 1689788680), (2, 844894340), (4, 422447170), (5, 337957736), (8, 211223585), (10, 168978868), (20, 84489434), (40, 42244717)]