19238500

素因数分解:

$2^2\times 5^3\times {\mathrm{109}}^1\times {\mathrm{353}}^1$

素因数の和:481

約数の個数: 48

約数和(自身を含む): 42522480

約数和(自身を除く): 23283980

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 125, 218, 250, 353, 436, 500, 545, 706, 1090, 1412, 1765, 2180, 2725, 3530, 5450, 7060, 8825, 10900, 13625, 17650, 27250, 35300, 38477, 44125, 54500, 76954, 88250, 153908, 176500, 192385, 384770, 769540, 961925, 1923850, 3847700, 4809625, 9619250, 19238500]

約数ペア:

[(1, 19238500), (2, 9619250), (4, 4809625), (5, 3847700), (10, 1923850), (20, 961925), (25, 769540), (50, 384770), (100, 192385), (109, 176500), (125, 153908), (218, 88250), (250, 76954), (353, 54500), (436, 44125), (500, 38477), (545, 35300), (706, 27250), (1090, 17650), (1412, 13625), (1765, 10900), (2180, 8825), (2725, 7060), (3530, 5450)]