205764205

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{641}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 271180800

約数和(自身を除く): 65416595

約数列:

[1, 5, 19, 31, 95, 109, 155, 545, 589, 641, 2071, 2945, 3205, 3379, 10355, 12179, 16895, 19871, 60895, 64201, 69869, 99355, 321005, 349345, 377549, 1327511, 1887745, 2165939, 6637555, 10829695, 41152841, 205764205]

約数ペア:

[(1, 205764205), (5, 41152841), (19, 10829695), (31, 6637555), (95, 2165939), (109, 1887745), (155, 1327511), (545, 377549), (589, 349345), (641, 321005), (2071, 99355), (2945, 69869), (3205, 64201), (3379, 60895), (10355, 19871), (12179, 16895)]