19425520

素因数分解:

$2^4\times 5^1\times {\mathrm{242819}}^1$

素因数の和:242832

約数の個数: 20

約数和(自身を含む): 45164520

約数和(自身を除く): 25739000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 242819, 485638, 971276, 1214095, 1942552, 2428190, 3885104, 4856380, 9712760, 19425520]

約数ペア:

[(1, 19425520), (2, 9712760), (4, 4856380), (5, 3885104), (8, 2428190), (10, 1942552), (16, 1214095), (20, 971276), (40, 485638), (80, 242819)]