2009000

素因数分解:

$2^3\times 5^3\times 7^2\times {\mathrm{41}}^1$

素因数の和:76

約数の個数: 96

約数和(自身を含む): 5601960

約数和(自身を除く): 3592960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 41, 49, 50, 56, 70, 82, 98, 100, 125, 140, 164, 175, 196, 200, 205, 245, 250, 280, 287, 328, 350, 392, 410, 490, 500, 574, 700, 820, 875, 980, 1000, 1025, 1148, 1225, 1400, 1435, 1640, 1750, 1960, 2009, 2050, 2296, 2450, 2870, 3500, 4018, 4100, 4900, 5125, 5740, 6125, 7000, 7175, 8036, 8200, 9800, 10045, 10250, 11480, 12250, 14350, 16072, 20090, 20500, 24500, 28700, 35875, 40180, 41000, 49000, 50225, 57400, 71750, 80360, 100450, 143500, 200900, 251125, 287000, 401800, 502250, 1004500, 2009000]

約数ペア:

[(1, 2009000), (2, 1004500), (4, 502250), (5, 401800), (7, 287000), (8, 251125), (10, 200900), (14, 143500), (20, 100450), (25, 80360), (28, 71750), (35, 57400), (40, 50225), (41, 49000), (49, 41000), (50, 40180), (56, 35875), (70, 28700), (82, 24500), (98, 20500), (100, 20090), (125, 16072), (140, 14350), (164, 12250), (175, 11480), (196, 10250), (200, 10045), (205, 9800), (245, 8200), (250, 8036), (280, 7175), (287, 7000), (328, 6125), (350, 5740), (392, 5125), (410, 4900), (490, 4100), (500, 4018), (574, 3500), (700, 2870), (820, 2450), (875, 2296), (980, 2050), (1000, 2009), (1025, 1960), (1148, 1750), (1225, 1640), (1400, 1435)]