20569600

素因数分解:

$2^9\times 5^2\times {\mathrm{1607}}^1$

素因数の和:1635

約数の個数: 60

約数和(自身を含む): 50994504

約数和(自身を除く): 30424904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1280, 1600, 1607, 2560, 3200, 3214, 6400, 6428, 8035, 12800, 12856, 16070, 25712, 32140, 40175, 51424, 64280, 80350, 102848, 128560, 160700, 205696, 257120, 321400, 411392, 514240, 642800, 822784, 1028480, 1285600, 2056960, 2571200, 4113920, 5142400, 10284800, 20569600]

約数ペア:

[(1, 20569600), (2, 10284800), (4, 5142400), (5, 4113920), (8, 2571200), (10, 2056960), (16, 1285600), (20, 1028480), (25, 822784), (32, 642800), (40, 514240), (50, 411392), (64, 321400), (80, 257120), (100, 205696), (128, 160700), (160, 128560), (200, 102848), (256, 80350), (320, 64280), (400, 51424), (512, 40175), (640, 32140), (800, 25712), (1280, 16070), (1600, 12856), (1607, 12800), (2560, 8035), (3200, 6428), (3214, 6400)]