208516385

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{17471}}^1$

素因数の和:17525

約数の個数: 32

約数和(自身を含む): 322043904

約数和(自身を除く): 113527519

約数列:

[1, 5, 7, 11, 31, 35, 55, 77, 155, 217, 341, 385, 1085, 1705, 2387, 11935, 17471, 87355, 122297, 192181, 541601, 611485, 960905, 1345267, 2708005, 3791207, 5957611, 6726335, 18956035, 29788055, 41703277, 208516385]

約数ペア:

[(1, 208516385), (5, 41703277), (7, 29788055), (11, 18956035), (31, 6726335), (35, 5957611), (55, 3791207), (77, 2708005), (155, 1345267), (217, 960905), (341, 611485), (385, 541601), (1085, 192181), (1705, 122297), (2387, 87355), (11935, 17471)]