18986380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135617}}^1$

素因数の和:135633

約数の個数: 24

約数和(自身を含む): 45567648

約数和(自身を除く): 26581268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135617, 271234, 542468, 678085, 949319, 1356170, 1898638, 2712340, 3797276, 4746595, 9493190, 18986380]

約数ペア:

[(1, 18986380), (2, 9493190), (4, 4746595), (5, 3797276), (7, 2712340), (10, 1898638), (14, 1356170), (20, 949319), (28, 678085), (35, 542468), (70, 271234), (140, 135617)]