81511724

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2693}}^1$

素因数の和:2774

約数の個数: 48

約数和(自身を含む): 173795328

約数和(自身を除く): 92283604

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 47, 92, 94, 161, 188, 322, 329, 644, 658, 1081, 1316, 2162, 2693, 4324, 5386, 7567, 10772, 15134, 18851, 30268, 37702, 61939, 75404, 123878, 126571, 247756, 253142, 433573, 506284, 867146, 885997, 1734292, 1771994, 2911133, 3543988, 5822266, 11644532, 20377931, 40755862, 81511724]

約数ペア:

[(1, 81511724), (2, 40755862), (4, 20377931), (7, 11644532), (14, 5822266), (23, 3543988), (28, 2911133), (46, 1771994), (47, 1734292), (92, 885997), (94, 867146), (161, 506284), (188, 433573), (322, 253142), (329, 247756), (644, 126571), (658, 123878), (1081, 75404), (1316, 61939), (2162, 37702), (2693, 30268), (4324, 18851), (5386, 15134), (7567, 10772)]