19681880

素因数分解:

$2^3\times 5^1\times {\mathrm{492047}}^1$

素因数の和:492058

約数の個数: 16

約数和(自身を含む): 44284320

約数和(自身を除く): 24602440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 492047, 984094, 1968188, 2460235, 3936376, 4920470, 9840940, 19681880]

約数ペア:

[(1, 19681880), (2, 9840940), (4, 4920470), (5, 3936376), (8, 2460235), (10, 1968188), (20, 984094), (40, 492047)]