1276805000

素因数分解:

$2^3\times 5^4\times {\mathrm{255361}}^1$

素因数の和:255387

約数の個数: 40

約数和(自身を含む): 2991565830

約数和(自身を除く): 1714760830

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 255361, 510722, 1021444, 1276805, 2042888, 2553610, 5107220, 6384025, 10214440, 12768050, 25536100, 31920125, 51072200, 63840250, 127680500, 159600625, 255361000, 319201250, 638402500, 1276805000]

約数ペア:

[(1, 1276805000), (2, 638402500), (4, 319201250), (5, 255361000), (8, 159600625), (10, 127680500), (20, 63840250), (25, 51072200), (40, 31920125), (50, 25536100), (100, 12768050), (125, 10214440), (200, 6384025), (250, 5107220), (500, 2553610), (625, 2042888), (1000, 1276805), (1250, 1021444), (2500, 510722), (5000, 255361)]