638049488

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{1051}}^1\times {\mathrm{1997}}^1$

素因数の和:3075

約数の個数: 40

約数和(自身を含む): 1303175520

約数和(自身を除く): 665126032

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 1051, 1997, 2102, 3994, 4204, 7988, 8408, 15976, 16816, 19969, 31952, 37943, 39938, 75886, 79876, 151772, 159752, 303544, 319504, 607088, 2098847, 4197694, 8395388, 16790776, 33581552, 39878093, 79756186, 159512372, 319024744, 638049488]

約数ペア:

[(1, 638049488), (2, 319024744), (4, 159512372), (8, 79756186), (16, 39878093), (19, 33581552), (38, 16790776), (76, 8395388), (152, 4197694), (304, 2098847), (1051, 607088), (1997, 319504), (2102, 303544), (3994, 159752), (4204, 151772), (7988, 79876), (8408, 75886), (15976, 39938), (16816, 37943), (19969, 31952)]