1273600

素因数分解:

$2^8\times 5^2\times {\mathrm{199}}^1$

素因数の和:225

約数の個数: 54

約数和(自身を含む): 3168200

約数和(自身を除く): 1894600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 199, 200, 256, 320, 398, 400, 640, 796, 800, 995, 1280, 1592, 1600, 1990, 3184, 3200, 3980, 4975, 6368, 6400, 7960, 9950, 12736, 15920, 19900, 25472, 31840, 39800, 50944, 63680, 79600, 127360, 159200, 254720, 318400, 636800, 1273600]

約数ペア:

[(1, 1273600), (2, 636800), (4, 318400), (5, 254720), (8, 159200), (10, 127360), (16, 79600), (20, 63680), (25, 50944), (32, 39800), (40, 31840), (50, 25472), (64, 19900), (80, 15920), (100, 12736), (128, 9950), (160, 7960), (199, 6400), (200, 6368), (256, 4975), (320, 3980), (398, 3200), (400, 3184), (640, 1990), (796, 1600), (800, 1592), (995, 1280)]