20038870

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4463}}^1$

素因数の和:4919

約数の個数: 16

約数和(自身を含む): 36158400

約数和(自身を除く): 16119530

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4463, 4490, 8926, 22315, 44630, 2003887, 4007774, 10019435, 20038870]

約数ペア:

[(1, 20038870), (2, 10019435), (5, 4007774), (10, 2003887), (449, 44630), (898, 22315), (2245, 8926), (4463, 4490)]