2019975640

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{397633}}^1$

素因数の和:397771

約数の個数: 32

約数和(自身を含む): 4580743680

約数和(自身を除く): 2560768040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 397633, 795266, 1590532, 1988165, 3181064, 3976330, 7952660, 15905320, 50499391, 100998782, 201997564, 252496955, 403995128, 504993910, 1009987820, 2019975640]

約数ペア:

[(1, 2019975640), (2, 1009987820), (4, 504993910), (5, 403995128), (8, 252496955), (10, 201997564), (20, 100998782), (40, 50499391), (127, 15905320), (254, 7952660), (508, 3976330), (635, 3181064), (1016, 1988165), (1270, 1590532), (2540, 795266), (5080, 397633)]