81411040

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11833}}^1$

素因数の和:11891

約数の個数: 48

約数和(自身を含む): 196823088

約数和(自身を除く): 115412048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3440, 6880, 11833, 23666, 47332, 59165, 94664, 118330, 189328, 236660, 378656, 473320, 508819, 946640, 1017638, 1893280, 2035276, 2544095, 4070552, 5088190, 8141104, 10176380, 16282208, 20352760, 40705520, 81411040]

約数ペア:

[(1, 81411040), (2, 40705520), (4, 20352760), (5, 16282208), (8, 10176380), (10, 8141104), (16, 5088190), (20, 4070552), (32, 2544095), (40, 2035276), (43, 1893280), (80, 1017638), (86, 946640), (160, 508819), (172, 473320), (215, 378656), (344, 236660), (430, 189328), (688, 118330), (860, 94664), (1376, 59165), (1720, 47332), (3440, 23666), (6880, 11833)]