20373920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18191}}^1$

素因数の和:18213

約数の個数: 48

約数和(自身を含む): 55012608

約数和(自身を除く): 34638688

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18191, 36382, 72764, 90955, 127337, 145528, 181910, 254674, 291056, 363820, 509348, 582112, 636685, 727640, 1018696, 1273370, 1455280, 2037392, 2546740, 2910560, 4074784, 5093480, 10186960, 20373920]

約数ペア:

[(1, 20373920), (2, 10186960), (4, 5093480), (5, 4074784), (7, 2910560), (8, 2546740), (10, 2037392), (14, 1455280), (16, 1273370), (20, 1018696), (28, 727640), (32, 636685), (35, 582112), (40, 509348), (56, 363820), (70, 291056), (80, 254674), (112, 181910), (140, 145528), (160, 127337), (224, 90955), (280, 72764), (560, 36382), (1120, 18191)]