261567355

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{7451}}^1$

素因数の和:7539

約数の個数: 32

約数和(自身を含む): 386311680

約数和(自身を除く): 124744325

約数列:

[1, 5, 7, 17, 35, 59, 85, 119, 295, 413, 595, 1003, 2065, 5015, 7021, 7451, 35105, 37255, 52157, 126667, 260785, 439609, 633335, 886669, 2198045, 3077263, 4433345, 7473353, 15386315, 37366765, 52313471, 261567355]

約数ペア:

[(1, 261567355), (5, 52313471), (7, 37366765), (17, 15386315), (35, 7473353), (59, 4433345), (85, 3077263), (119, 2198045), (295, 886669), (413, 633335), (595, 439609), (1003, 260785), (2065, 126667), (5015, 52157), (7021, 37255), (7451, 35105)]