12900590

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{9281}}^1$

素因数の和:9427

約数の個数: 16

約数和(自身を含む): 23390640

約数和(自身を除く): 10490050

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 9281, 18562, 46405, 92810, 1290059, 2580118, 6450295, 12900590]

約数ペア:

[(1, 12900590), (2, 6450295), (5, 2580118), (10, 1290059), (139, 92810), (278, 46405), (695, 18562), (1390, 9281)]