19921820

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2269}}^1$

素因数の和:2717

約数の個数: 24

約数和(自身を含む): 41949600

約数和(自身を除く): 22027780

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 2269, 4390, 4538, 8780, 9076, 11345, 22690, 45380, 996091, 1992182, 3984364, 4980455, 9960910, 19921820]

約数ペア:

[(1, 19921820), (2, 9960910), (4, 4980455), (5, 3984364), (10, 1992182), (20, 996091), (439, 45380), (878, 22690), (1756, 11345), (2195, 9076), (2269, 8780), (4390, 4538)]