18172880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1$

素因数の和:324

約数の個数: 80

約数和(自身を含む): 46764864

約数和(自身を除く): 28591984

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 107, 110, 176, 193, 214, 220, 386, 428, 440, 535, 772, 856, 880, 965, 1070, 1177, 1544, 1712, 1930, 2123, 2140, 2354, 3088, 3860, 4246, 4280, 4708, 5885, 7720, 8492, 8560, 9416, 10615, 11770, 15440, 16984, 18832, 20651, 21230, 23540, 33968, 41302, 42460, 47080, 82604, 84920, 94160, 103255, 165208, 169840, 206510, 227161, 330416, 413020, 454322, 826040, 908644, 1135805, 1652080, 1817288, 2271610, 3634576, 4543220, 9086440, 18172880]

約数ペア:

[(1, 18172880), (2, 9086440), (4, 4543220), (5, 3634576), (8, 2271610), (10, 1817288), (11, 1652080), (16, 1135805), (20, 908644), (22, 826040), (40, 454322), (44, 413020), (55, 330416), (80, 227161), (88, 206510), (107, 169840), (110, 165208), (176, 103255), (193, 94160), (214, 84920), (220, 82604), (386, 47080), (428, 42460), (440, 41302), (535, 33968), (772, 23540), (856, 21230), (880, 20651), (965, 18832), (1070, 16984), (1177, 15440), (1544, 11770), (1712, 10615), (1930, 9416), (2123, 8560), (2140, 8492), (2354, 7720), (3088, 5885), (3860, 4708), (4246, 4280)]