21568000

素因数分解:

$2^9\times 5^3\times {\mathrm{337}}^1$

素因数の和:370

約数の個数: 80

約数和(自身を含む): 53940744

約数和(自身を除く): 32372744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 337, 400, 500, 512, 640, 674, 800, 1000, 1280, 1348, 1600, 1685, 2000, 2560, 2696, 3200, 3370, 4000, 5392, 6400, 6740, 8000, 8425, 10784, 12800, 13480, 16000, 16850, 21568, 26960, 32000, 33700, 42125, 43136, 53920, 64000, 67400, 84250, 86272, 107840, 134800, 168500, 172544, 215680, 269600, 337000, 431360, 539200, 674000, 862720, 1078400, 1348000, 2156800, 2696000, 4313600, 5392000, 10784000, 21568000]

約数ペア:

[(1, 21568000), (2, 10784000), (4, 5392000), (5, 4313600), (8, 2696000), (10, 2156800), (16, 1348000), (20, 1078400), (25, 862720), (32, 674000), (40, 539200), (50, 431360), (64, 337000), (80, 269600), (100, 215680), (125, 172544), (128, 168500), (160, 134800), (200, 107840), (250, 86272), (256, 84250), (320, 67400), (337, 64000), (400, 53920), (500, 43136), (512, 42125), (640, 33700), (674, 32000), (800, 26960), (1000, 21568), (1280, 16850), (1348, 16000), (1600, 13480), (1685, 12800), (2000, 10784), (2560, 8425), (2696, 8000), (3200, 6740), (3370, 6400), (4000, 5392)]