20742656

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1$

素因数の和:185

約数の個数: 80

約数和(自身を含む): 47139840

約数和(自身を除く): 26397184

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 32, 44, 58, 64, 88, 116, 127, 128, 176, 232, 254, 256, 319, 352, 464, 508, 512, 638, 704, 928, 1016, 1276, 1397, 1408, 1856, 2032, 2552, 2794, 2816, 3683, 3712, 4064, 5104, 5588, 5632, 7366, 7424, 8128, 10208, 11176, 14732, 14848, 16256, 20416, 22352, 29464, 32512, 40513, 40832, 44704, 58928, 65024, 81026, 81664, 89408, 117856, 162052, 163328, 178816, 235712, 324104, 357632, 471424, 648208, 715264, 942848, 1296416, 1885696, 2592832, 5185664, 10371328, 20742656]

約数ペア:

[(1, 20742656), (2, 10371328), (4, 5185664), (8, 2592832), (11, 1885696), (16, 1296416), (22, 942848), (29, 715264), (32, 648208), (44, 471424), (58, 357632), (64, 324104), (88, 235712), (116, 178816), (127, 163328), (128, 162052), (176, 117856), (232, 89408), (254, 81664), (256, 81026), (319, 65024), (352, 58928), (464, 44704), (508, 40832), (512, 40513), (638, 32512), (704, 29464), (928, 22352), (1016, 20416), (1276, 16256), (1397, 14848), (1408, 14732), (1856, 11176), (2032, 10208), (2552, 8128), (2794, 7424), (2816, 7366), (3683, 5632), (3712, 5588), (4064, 5104)]