19793680

素因数分解:

$2^4\times 5^1\times {\mathrm{247421}}^1$

素因数の和:247434

約数の個数: 20

約数和(自身を含む): 46020492

約数和(自身を除く): 26226812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 247421, 494842, 989684, 1237105, 1979368, 2474210, 3958736, 4948420, 9896840, 19793680]

約数ペア:

[(1, 19793680), (2, 9896840), (4, 4948420), (5, 3958736), (8, 2474210), (10, 1979368), (16, 1237105), (20, 989684), (40, 494842), (80, 247421)]