20866000

素因数分解:

$2^4\times 5^3\times {\mathrm{10433}}^1$

素因数の和:10456

約数の個数: 40

約数和(自身を含む): 50458824

約数和(自身を除く): 29592824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 10433, 20866, 41732, 52165, 83464, 104330, 166928, 208660, 260825, 417320, 521650, 834640, 1043300, 1304125, 2086600, 2608250, 4173200, 5216500, 10433000, 20866000]

約数ペア:

[(1, 20866000), (2, 10433000), (4, 5216500), (5, 4173200), (8, 2608250), (10, 2086600), (16, 1304125), (20, 1043300), (25, 834640), (40, 521650), (50, 417320), (80, 260825), (100, 208660), (125, 166928), (200, 104330), (250, 83464), (400, 52165), (500, 41732), (1000, 20866), (2000, 10433)]