12856000

素因数分解:

$2^6\times 5^3\times {\mathrm{1607}}^1$

素因数の和:1634

約数の個数: 56

約数和(自身を含む): 31857696

約数和(自身を除く): 19001696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 1000, 1600, 1607, 2000, 3214, 4000, 6428, 8000, 8035, 12856, 16070, 25712, 32140, 40175, 51424, 64280, 80350, 102848, 128560, 160700, 200875, 257120, 321400, 401750, 514240, 642800, 803500, 1285600, 1607000, 2571200, 3214000, 6428000, 12856000]

約数ペア:

[(1, 12856000), (2, 6428000), (4, 3214000), (5, 2571200), (8, 1607000), (10, 1285600), (16, 803500), (20, 642800), (25, 514240), (32, 401750), (40, 321400), (50, 257120), (64, 200875), (80, 160700), (100, 128560), (125, 102848), (160, 80350), (200, 64280), (250, 51424), (320, 40175), (400, 32140), (500, 25712), (800, 16070), (1000, 12856), (1600, 8035), (1607, 8000), (2000, 6428), (3214, 4000)]