20488580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146347}}^1$

素因数の和:146363

約数の個数: 24

約数和(自身を含む): 49172928

約数和(自身を除く): 28684348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146347, 292694, 585388, 731735, 1024429, 1463470, 2048858, 2926940, 4097716, 5122145, 10244290, 20488580]

約数ペア:

[(1, 20488580), (2, 10244290), (4, 5122145), (5, 4097716), (7, 2926940), (10, 2048858), (14, 1463470), (20, 1024429), (28, 731735), (35, 585388), (70, 292694), (140, 146347)]