20642688

素因数分解:

$2^7\times 3^4\times {\mathrm{11}}^1\times {\mathrm{181}}^1$

素因数の和:218

約数の個数: 160

約数和(自身を含む): 67387320

約数和(自身を除く): 46744632

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 32, 33, 36, 44, 48, 54, 64, 66, 72, 81, 88, 96, 99, 108, 128, 132, 144, 162, 176, 181, 192, 198, 216, 264, 288, 297, 324, 352, 362, 384, 396, 432, 528, 543, 576, 594, 648, 704, 724, 792, 864, 891, 1056, 1086, 1152, 1188, 1296, 1408, 1448, 1584, 1629, 1728, 1782, 1991, 2112, 2172, 2376, 2592, 2896, 3168, 3258, 3456, 3564, 3982, 4224, 4344, 4752, 4887, 5184, 5792, 5973, 6336, 6516, 7128, 7964, 8688, 9504, 9774, 10368, 11584, 11946, 12672, 13032, 14256, 14661, 15928, 17376, 17919, 19008, 19548, 23168, 23892, 26064, 28512, 29322, 31856, 34752, 35838, 38016, 39096, 47784, 52128, 53757, 57024, 58644, 63712, 69504, 71676, 78192, 95568, 104256, 107514, 114048, 117288, 127424, 143352, 156384, 161271, 191136, 208512, 215028, 234576, 254848, 286704, 312768, 322542, 382272, 430056, 469152, 573408, 625536, 645084, 764544, 860112, 938304, 1146816, 1290168, 1720224, 1876608, 2293632, 2580336, 3440448, 5160672, 6880896, 10321344, 20642688]

約数ペア:

[(1, 20642688), (2, 10321344), (3, 6880896), (4, 5160672), (6, 3440448), (8, 2580336), (9, 2293632), (11, 1876608), (12, 1720224), (16, 1290168), (18, 1146816), (22, 938304), (24, 860112), (27, 764544), (32, 645084), (33, 625536), (36, 573408), (44, 469152), (48, 430056), (54, 382272), (64, 322542), (66, 312768), (72, 286704), (81, 254848), (88, 234576), (96, 215028), (99, 208512), (108, 191136), (128, 161271), (132, 156384), (144, 143352), (162, 127424), (176, 117288), (181, 114048), (192, 107514), (198, 104256), (216, 95568), (264, 78192), (288, 71676), (297, 69504), (324, 63712), (352, 58644), (362, 57024), (384, 53757), (396, 52128), (432, 47784), (528, 39096), (543, 38016), (576, 35838), (594, 34752), (648, 31856), (704, 29322), (724, 28512), (792, 26064), (864, 23892), (891, 23168), (1056, 19548), (1086, 19008), (1152, 17919), (1188, 17376), (1296, 15928), (1408, 14661), (1448, 14256), (1584, 13032), (1629, 12672), (1728, 11946), (1782, 11584), (1991, 10368), (2112, 9774), (2172, 9504), (2376, 8688), (2592, 7964), (2896, 7128), (3168, 6516), (3258, 6336), (3456, 5973), (3564, 5792), (3982, 5184), (4224, 4887), (4344, 4752)]