19193260

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2467}}^1$

素因数の和:2865

約数の個数: 24

約数和(自身を含む): 40425840

約数和(自身を除く): 21232580

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 2467, 3890, 4934, 7780, 9868, 12335, 24670, 49340, 959663, 1919326, 3838652, 4798315, 9596630, 19193260]

約数ペア:

[(1, 19193260), (2, 9596630), (4, 4798315), (5, 3838652), (10, 1919326), (20, 959663), (389, 49340), (778, 24670), (1556, 12335), (1945, 9868), (2467, 7780), (3890, 4934)]