20939000

素因数分解:

$2^3\times 5^3\times {\mathrm{20939}}^1$

素因数の和:20960

約数の個数: 32

約数和(自身を含む): 48999600

約数和(自身を除く): 28060600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 20939, 41878, 83756, 104695, 167512, 209390, 418780, 523475, 837560, 1046950, 2093900, 2617375, 4187800, 5234750, 10469500, 20939000]

約数ペア:

[(1, 20939000), (2, 10469500), (4, 5234750), (5, 4187800), (8, 2617375), (10, 2093900), (20, 1046950), (25, 837560), (40, 523475), (50, 418780), (100, 209390), (125, 167512), (200, 104695), (250, 83756), (500, 41878), (1000, 20939)]