208078215

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{641}}^1$

素因数の和:752

約数の個数: 64

約数和(自身を含む): 377187840

約数和(自身を除く): 169109625

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 67, 85, 95, 201, 255, 285, 323, 335, 641, 969, 1005, 1139, 1273, 1615, 1923, 3205, 3417, 3819, 4845, 5695, 6365, 9615, 10897, 12179, 17085, 19095, 21641, 32691, 36537, 42947, 54485, 60895, 64923, 108205, 128841, 163455, 182685, 207043, 214735, 324615, 621129, 644205, 730099, 815993, 1035215, 2190297, 2447979, 3105645, 3650495, 4079965, 10951485, 12239895, 13871881, 41615643, 69359405, 208078215]

約数ペア:

[(1, 208078215), (3, 69359405), (5, 41615643), (15, 13871881), (17, 12239895), (19, 10951485), (51, 4079965), (57, 3650495), (67, 3105645), (85, 2447979), (95, 2190297), (201, 1035215), (255, 815993), (285, 730099), (323, 644205), (335, 621129), (641, 324615), (969, 214735), (1005, 207043), (1139, 182685), (1273, 163455), (1615, 128841), (1923, 108205), (3205, 64923), (3417, 60895), (3819, 54485), (4845, 42947), (5695, 36537), (6365, 32691), (9615, 21641), (10897, 19095), (12179, 17085)]