81390464

素因数分解:

$2^7\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 168618240

約数和(自身を除く): 87227776

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 83, 94, 128, 163, 166, 188, 326, 332, 376, 652, 664, 752, 1304, 1328, 1504, 2608, 2656, 3008, 3901, 5216, 5312, 6016, 7661, 7802, 10432, 10624, 13529, 15322, 15604, 20864, 27058, 30644, 31208, 54116, 61288, 62416, 108232, 122576, 124832, 216464, 245152, 249664, 432928, 490304, 499328, 635863, 865856, 980608, 1271726, 1731712, 2543452, 5086904, 10173808, 20347616, 40695232, 81390464]

約数ペア:

[(1, 81390464), (2, 40695232), (4, 20347616), (8, 10173808), (16, 5086904), (32, 2543452), (47, 1731712), (64, 1271726), (83, 980608), (94, 865856), (128, 635863), (163, 499328), (166, 490304), (188, 432928), (326, 249664), (332, 245152), (376, 216464), (652, 124832), (664, 122576), (752, 108232), (1304, 62416), (1328, 61288), (1504, 54116), (2608, 31208), (2656, 30644), (3008, 27058), (3901, 20864), (5216, 15604), (5312, 15322), (6016, 13529), (7661, 10624), (7802, 10432)]