2912881195

素因数分解:

$5^1\times 7^4\times {\mathrm{242639}}^1$

素因数の和:242672

約数の個数: 20

約数和(自身を含む): 4077807840

約数和(自身を除く): 1164926645

約数列:

[1, 5, 7, 35, 49, 245, 343, 1715, 2401, 12005, 242639, 1213195, 1698473, 8492365, 11889311, 59446555, 83225177, 416125885, 582576239, 2912881195]

約数ペア:

[(1, 2912881195), (5, 582576239), (7, 416125885), (35, 83225177), (49, 59446555), (245, 11889311), (343, 8492365), (1715, 1698473), (2401, 1213195), (12005, 242639)]