12736000

素因数分解:

$2^9\times 5^3\times {\mathrm{199}}^1$

素因数の和:232

約数の個数: 80

約数和(自身を含む): 31917600

約数和(自身を除く): 19181600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 199, 200, 250, 256, 320, 398, 400, 500, 512, 640, 796, 800, 995, 1000, 1280, 1592, 1600, 1990, 2000, 2560, 3184, 3200, 3980, 4000, 4975, 6368, 6400, 7960, 8000, 9950, 12736, 12800, 15920, 16000, 19900, 24875, 25472, 31840, 32000, 39800, 49750, 50944, 63680, 64000, 79600, 99500, 101888, 127360, 159200, 199000, 254720, 318400, 398000, 509440, 636800, 796000, 1273600, 1592000, 2547200, 3184000, 6368000, 12736000]

約数ペア:

[(1, 12736000), (2, 6368000), (4, 3184000), (5, 2547200), (8, 1592000), (10, 1273600), (16, 796000), (20, 636800), (25, 509440), (32, 398000), (40, 318400), (50, 254720), (64, 199000), (80, 159200), (100, 127360), (125, 101888), (128, 99500), (160, 79600), (199, 64000), (200, 63680), (250, 50944), (256, 49750), (320, 39800), (398, 32000), (400, 31840), (500, 25472), (512, 24875), (640, 19900), (796, 16000), (800, 15920), (995, 12800), (1000, 12736), (1280, 9950), (1592, 8000), (1600, 7960), (1990, 6400), (2000, 6368), (2560, 4975), (3184, 4000), (3200, 3980)]