19328420

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{5399}}^1$

素因数の和:5587

約数の個数: 24

約数和(自身を含む): 40824000

約数和(自身を除く): 21495580

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 5399, 10798, 21596, 26995, 53990, 107980, 966421, 1932842, 3865684, 4832105, 9664210, 19328420]

約数ペア:

[(1, 19328420), (2, 9664210), (4, 4832105), (5, 3865684), (10, 1932842), (20, 966421), (179, 107980), (358, 53990), (716, 26995), (895, 21596), (1790, 10798), (3580, 5399)]