28707245

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{28283}}^1$

素因数の和:28324

約数の個数: 16

約数和(自身を含む): 40728960

約数和(自身を除く): 12021715

約数列:

[1, 5, 7, 29, 35, 145, 203, 1015, 28283, 141415, 197981, 820207, 989905, 4101035, 5741449, 28707245]

約数ペア:

[(1, 28707245), (5, 5741449), (7, 4101035), (29, 989905), (35, 820207), (145, 197981), (203, 141415), (1015, 28283)]