27870890

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{20051}}^1$

素因数の和:20197

約数の個数: 16

約数和(自身を含む): 50531040

約数和(自身を除く): 22660150

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 20051, 40102, 100255, 200510, 2787089, 5574178, 13935445, 27870890]

約数ペア:

[(1, 27870890), (2, 13935445), (5, 5574178), (10, 2787089), (139, 200510), (278, 100255), (695, 40102), (1390, 20051)]