19128500

素因数分解:

$2^2\times 5^3\times {\mathrm{67}}^1\times {\mathrm{571}}^1$

素因数の和:657

約数の個数: 48

約数和(自身を含む): 42474432

約数和(自身を除く): 23345932

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 100, 125, 134, 250, 268, 335, 500, 571, 670, 1142, 1340, 1675, 2284, 2855, 3350, 5710, 6700, 8375, 11420, 14275, 16750, 28550, 33500, 38257, 57100, 71375, 76514, 142750, 153028, 191285, 285500, 382570, 765140, 956425, 1912850, 3825700, 4782125, 9564250, 19128500]

約数ペア:

[(1, 19128500), (2, 9564250), (4, 4782125), (5, 3825700), (10, 1912850), (20, 956425), (25, 765140), (50, 382570), (67, 285500), (100, 191285), (125, 153028), (134, 142750), (250, 76514), (268, 71375), (335, 57100), (500, 38257), (571, 33500), (670, 28550), (1142, 16750), (1340, 14275), (1675, 11420), (2284, 8375), (2855, 6700), (3350, 5710)]