12990145

素因数分解:

$5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1433}}^1$

素因数の和:1489

約数の個数: 24

約数和(自身を含む): 18636264

約数和(自身を除く): 5646119

約数列:

[1, 5, 7, 35, 37, 49, 185, 245, 259, 1295, 1433, 1813, 7165, 9065, 10031, 50155, 53021, 70217, 265105, 351085, 371147, 1855735, 2598029, 12990145]

約数ペア:

[(1, 12990145), (5, 2598029), (7, 1855735), (35, 371147), (37, 351085), (49, 265105), (185, 70217), (245, 53021), (259, 50155), (1295, 10031), (1433, 9065), (1813, 7165)]