81306368

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2221}}^1$

素因数の和:2261

約数の個数: 72

約数和(自身を含む): 190754256

約数和(自身を除く): 109447888

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 64, 88, 104, 128, 143, 176, 208, 256, 286, 352, 416, 572, 704, 832, 1144, 1408, 1664, 2221, 2288, 2816, 3328, 4442, 4576, 8884, 9152, 17768, 18304, 24431, 28873, 35536, 36608, 48862, 57746, 71072, 97724, 115492, 142144, 195448, 230984, 284288, 317603, 390896, 461968, 568576, 635206, 781792, 923936, 1270412, 1563584, 1847872, 2540824, 3127168, 3695744, 5081648, 6254336, 7391488, 10163296, 20326592, 40653184, 81306368]

約数ペア:

[(1, 81306368), (2, 40653184), (4, 20326592), (8, 10163296), (11, 7391488), (13, 6254336), (16, 5081648), (22, 3695744), (26, 3127168), (32, 2540824), (44, 1847872), (52, 1563584), (64, 1270412), (88, 923936), (104, 781792), (128, 635206), (143, 568576), (176, 461968), (208, 390896), (256, 317603), (286, 284288), (352, 230984), (416, 195448), (572, 142144), (704, 115492), (832, 97724), (1144, 71072), (1408, 57746), (1664, 48862), (2221, 36608), (2288, 35536), (2816, 28873), (3328, 24431), (4442, 18304), (4576, 17768), (8884, 9152)]