20347616

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 41658624

約数和(自身を除く): 21311008

約数列:

[1, 2, 4, 8, 16, 32, 47, 83, 94, 163, 166, 188, 326, 332, 376, 652, 664, 752, 1304, 1328, 1504, 2608, 2656, 3901, 5216, 7661, 7802, 13529, 15322, 15604, 27058, 30644, 31208, 54116, 61288, 62416, 108232, 122576, 124832, 216464, 245152, 432928, 635863, 1271726, 2543452, 5086904, 10173808, 20347616]

約数ペア:

[(1, 20347616), (2, 10173808), (4, 5086904), (8, 2543452), (16, 1271726), (32, 635863), (47, 432928), (83, 245152), (94, 216464), (163, 124832), (166, 122576), (188, 108232), (326, 62416), (332, 61288), (376, 54116), (652, 31208), (664, 30644), (752, 27058), (1304, 15604), (1328, 15322), (1504, 13529), (2608, 7802), (2656, 7661), (3901, 5216)]