166291640

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{449}}^1$

素因数の和:704

約数の個数: 64

約数和(自身を含む): 384912000

約数和(自身を除く): 218620360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 197, 235, 376, 394, 449, 470, 788, 898, 940, 985, 1576, 1796, 1880, 1970, 2245, 3592, 3940, 4490, 7880, 8980, 9259, 17960, 18518, 21103, 37036, 42206, 46295, 74072, 84412, 88453, 92590, 105515, 168824, 176906, 185180, 211030, 353812, 370360, 422060, 442265, 707624, 844120, 884530, 1769060, 3538120, 4157291, 8314582, 16629164, 20786455, 33258328, 41572910, 83145820, 166291640]

約数ペア:

[(1, 166291640), (2, 83145820), (4, 41572910), (5, 33258328), (8, 20786455), (10, 16629164), (20, 8314582), (40, 4157291), (47, 3538120), (94, 1769060), (188, 884530), (197, 844120), (235, 707624), (376, 442265), (394, 422060), (449, 370360), (470, 353812), (788, 211030), (898, 185180), (940, 176906), (985, 168824), (1576, 105515), (1796, 92590), (1880, 88453), (1970, 84412), (2245, 74072), (3592, 46295), (3940, 42206), (4490, 37036), (7880, 21103), (8980, 18518), (9259, 17960)]