201218905

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1\times {\mathrm{1913}}^1$

素因数の和:2220

約数の個数: 16

約数和(自身を含む): 245068560

約数和(自身を除く): 43849655

約数列:

[1, 5, 109, 193, 545, 965, 1913, 9565, 21037, 105185, 208517, 369209, 1042585, 1846045, 40243781, 201218905]

約数ペア:

[(1, 201218905), (5, 40243781), (109, 1846045), (193, 1042585), (545, 369209), (965, 208517), (1913, 105185), (9565, 21037)]