18988112

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:268

約数の個数: 80

約数和(自身を含む): 44455488

約数和(自身を除く): 25467376

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 43, 44, 52, 86, 88, 104, 143, 172, 176, 193, 208, 286, 344, 386, 473, 559, 572, 688, 772, 946, 1118, 1144, 1544, 1892, 2123, 2236, 2288, 2509, 3088, 3784, 4246, 4472, 5018, 6149, 7568, 8299, 8492, 8944, 10036, 12298, 16598, 16984, 20072, 24596, 27599, 33196, 33968, 40144, 49192, 55198, 66392, 91289, 98384, 107887, 110396, 132784, 182578, 215774, 220792, 365156, 431548, 441584, 730312, 863096, 1186757, 1460624, 1726192, 2373514, 4747028, 9494056, 18988112]

約数ペア:

[(1, 18988112), (2, 9494056), (4, 4747028), (8, 2373514), (11, 1726192), (13, 1460624), (16, 1186757), (22, 863096), (26, 730312), (43, 441584), (44, 431548), (52, 365156), (86, 220792), (88, 215774), (104, 182578), (143, 132784), (172, 110396), (176, 107887), (193, 98384), (208, 91289), (286, 66392), (344, 55198), (386, 49192), (473, 40144), (559, 33968), (572, 33196), (688, 27599), (772, 24596), (946, 20072), (1118, 16984), (1144, 16598), (1544, 12298), (1892, 10036), (2123, 8944), (2236, 8492), (2288, 8299), (2509, 7568), (3088, 6149), (3784, 5018), (4246, 4472)]