25858220

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{6563}}^1$

素因数の和:6769

約数の個数: 24

約数和(自身を含む): 54586224

約数和(自身を除く): 28728004

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 6563, 13126, 26252, 32815, 65630, 131260, 1292911, 2585822, 5171644, 6464555, 12929110, 25858220]

約数ペア:

[(1, 25858220), (2, 12929110), (4, 6464555), (5, 5171644), (10, 2585822), (20, 1292911), (197, 131260), (394, 65630), (788, 32815), (985, 26252), (1970, 13126), (3940, 6563)]