28853820

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{1979}}^1$

素因数の和:2006

約数の個数: 84

約数和(自身を含む): 90893880

約数和(自身を除く): 62040060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 729, 810, 972, 1215, 1458, 1620, 1979, 2430, 2916, 3645, 3958, 4860, 5937, 7290, 7916, 9895, 11874, 14580, 17811, 19790, 23748, 29685, 35622, 39580, 53433, 59370, 71244, 89055, 106866, 118740, 160299, 178110, 213732, 267165, 320598, 356220, 480897, 534330, 641196, 801495, 961794, 1068660, 1442691, 1602990, 1923588, 2404485, 2885382, 3205980, 4808970, 5770764, 7213455, 9617940, 14426910, 28853820]

約数ペア:

[(1, 28853820), (2, 14426910), (3, 9617940), (4, 7213455), (5, 5770764), (6, 4808970), (9, 3205980), (10, 2885382), (12, 2404485), (15, 1923588), (18, 1602990), (20, 1442691), (27, 1068660), (30, 961794), (36, 801495), (45, 641196), (54, 534330), (60, 480897), (81, 356220), (90, 320598), (108, 267165), (135, 213732), (162, 178110), (180, 160299), (243, 118740), (270, 106866), (324, 89055), (405, 71244), (486, 59370), (540, 53433), (729, 39580), (810, 35622), (972, 29685), (1215, 23748), (1458, 19790), (1620, 17811), (1979, 14580), (2430, 11874), (2916, 9895), (3645, 7916), (3958, 7290), (4860, 5937)]