1284500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{367}}^1$

素因数の和:393

約数の個数: 48

約数和(自身を含む): 3214848

約数和(自身を除く): 1930348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 367, 500, 700, 734, 875, 1468, 1750, 1835, 2569, 3500, 3670, 5138, 7340, 9175, 10276, 12845, 18350, 25690, 36700, 45875, 51380, 64225, 91750, 128450, 183500, 256900, 321125, 642250, 1284500]

約数ペア:

[(1, 1284500), (2, 642250), (4, 321125), (5, 256900), (7, 183500), (10, 128450), (14, 91750), (20, 64225), (25, 51380), (28, 45875), (35, 36700), (50, 25690), (70, 18350), (100, 12845), (125, 10276), (140, 9175), (175, 7340), (250, 5138), (350, 3670), (367, 3500), (500, 2569), (700, 1835), (734, 1750), (875, 1468)]