128654456

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{1693}}^1$

素因数の和:1788

約数の個数: 64

約数和(自身を含む): 292723200

約数和(自身を除く): 164068744

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 59, 92, 118, 161, 184, 236, 322, 413, 472, 644, 826, 1288, 1357, 1652, 1693, 2714, 3304, 3386, 5428, 6772, 9499, 10856, 11851, 13544, 18998, 23702, 37996, 38939, 47404, 75992, 77878, 94808, 99887, 155756, 199774, 272573, 311512, 399548, 545146, 699209, 799096, 1090292, 1398418, 2180584, 2297401, 2796836, 4594802, 5593672, 9189604, 16081807, 18379208, 32163614, 64327228, 128654456]

約数ペア:

[(1, 128654456), (2, 64327228), (4, 32163614), (7, 18379208), (8, 16081807), (14, 9189604), (23, 5593672), (28, 4594802), (46, 2796836), (56, 2297401), (59, 2180584), (92, 1398418), (118, 1090292), (161, 799096), (184, 699209), (236, 545146), (322, 399548), (413, 311512), (472, 272573), (644, 199774), (826, 155756), (1288, 99887), (1357, 94808), (1652, 77878), (1693, 75992), (2714, 47404), (3304, 38939), (3386, 37996), (5428, 23702), (6772, 18998), (9499, 13544), (10856, 11851)]