20178076772

素因数分解:

$2^2\times 7^1\times {\mathrm{720645599}}^1$

素因数の和:720645610

約数の個数: 12

約数和(自身を含む): 40356153600

約数和(自身を除く): 20178076828

約数列:

[1, 2, 4, 7, 14, 28, 720645599, 1441291198, 2882582396, 5044519193, 10089038386, 20178076772]

約数ペア:

[(1, 20178076772), (2, 10089038386), (4, 5044519193), (7, 2882582396), (14, 1441291198), (28, 720645599)]