13781155

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:474

約数の個数: 16

約数和(自身を含む): 16934400

約数和(自身を除く): 3153245

約数列:

[1, 5, 79, 139, 251, 395, 695, 1255, 10981, 19829, 34889, 54905, 99145, 174445, 2756231, 13781155]

約数ペア:

[(1, 13781155), (5, 2756231), (79, 174445), (139, 99145), (251, 54905), (395, 34889), (695, 19829), (1255, 10981)]