19966848

素因数分解:

$2^7\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:220

約数の個数: 128

約数和(自身を含む): 60220800

約数和(自身を除く): 40253952

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 29, 32, 33, 44, 48, 58, 64, 66, 87, 88, 96, 116, 128, 132, 163, 174, 176, 192, 232, 264, 319, 326, 348, 352, 384, 464, 489, 528, 638, 652, 696, 704, 928, 957, 978, 1056, 1276, 1304, 1392, 1408, 1793, 1856, 1914, 1956, 2112, 2552, 2608, 2784, 3586, 3712, 3828, 3912, 4224, 4727, 5104, 5216, 5379, 5568, 7172, 7656, 7824, 9454, 10208, 10432, 10758, 11136, 14181, 14344, 15312, 15648, 18908, 20416, 20864, 21516, 28362, 28688, 30624, 31296, 37816, 40832, 43032, 51997, 56724, 57376, 61248, 62592, 75632, 86064, 103994, 113448, 114752, 122496, 151264, 155991, 172128, 207988, 226896, 229504, 302528, 311982, 344256, 415976, 453792, 605056, 623964, 688512, 831952, 907584, 1247928, 1663904, 1815168, 2495856, 3327808, 4991712, 6655616, 9983424, 19966848]

約数ペア:

[(1, 19966848), (2, 9983424), (3, 6655616), (4, 4991712), (6, 3327808), (8, 2495856), (11, 1815168), (12, 1663904), (16, 1247928), (22, 907584), (24, 831952), (29, 688512), (32, 623964), (33, 605056), (44, 453792), (48, 415976), (58, 344256), (64, 311982), (66, 302528), (87, 229504), (88, 226896), (96, 207988), (116, 172128), (128, 155991), (132, 151264), (163, 122496), (174, 114752), (176, 113448), (192, 103994), (232, 86064), (264, 75632), (319, 62592), (326, 61248), (348, 57376), (352, 56724), (384, 51997), (464, 43032), (489, 40832), (528, 37816), (638, 31296), (652, 30624), (696, 28688), (704, 28362), (928, 21516), (957, 20864), (978, 20416), (1056, 18908), (1276, 15648), (1304, 15312), (1392, 14344), (1408, 14181), (1793, 11136), (1856, 10758), (1914, 10432), (1956, 10208), (2112, 9454), (2552, 7824), (2608, 7656), (2784, 7172), (3586, 5568), (3712, 5379), (3828, 5216), (3912, 5104), (4224, 4727)]