20289702980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{11731}}^1\times {\mathrm{5087}}^1$

素因数の和:16844

約数の個数: 48

約数和(自身を含む): 45127466496

約数和(自身を除く): 24837763516

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 5087, 10174, 11731, 20348, 23462, 25435, 46924, 50870, 58655, 86479, 101740, 117310, 172958, 199427, 234620, 345916, 398854, 432395, 797708, 864790, 997135, 1729580, 1994270, 3988540, 59675597, 119351194, 238702388, 298377985, 596755970, 1014485149, 1193511940, 2028970298, 4057940596, 5072425745, 10144851490, 20289702980]

約数ペア:

[(1, 20289702980), (2, 10144851490), (4, 5072425745), (5, 4057940596), (10, 2028970298), (17, 1193511940), (20, 1014485149), (34, 596755970), (68, 298377985), (85, 238702388), (170, 119351194), (340, 59675597), (5087, 3988540), (10174, 1994270), (11731, 1729580), (20348, 997135), (23462, 864790), (25435, 797708), (46924, 432395), (50870, 398854), (58655, 345916), (86479, 234620), (101740, 199427), (117310, 172958)]