1298291275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{21977}}^1$

素因数の和:22143

約数の個数: 24

約数和(自身を含む): 1716921360

約数和(自身を除く): 418630085

約数列:

[1, 5, 17, 25, 85, 139, 425, 695, 2363, 3475, 11815, 21977, 59075, 109885, 373609, 549425, 1868045, 3054803, 9340225, 15274015, 51931651, 76370075, 259658255, 1298291275]

約数ペア:

[(1, 1298291275), (5, 259658255), (17, 76370075), (25, 51931651), (85, 15274015), (139, 9340225), (425, 3054803), (695, 1868045), (2363, 549425), (3475, 373609), (11815, 109885), (21977, 59075)]