21845120

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:166

約数の個数: 128

約数和(自身を含む): 59486400

約数和(自身を除く): 37641280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 40, 44, 55, 58, 64, 80, 88, 107, 110, 116, 128, 145, 160, 176, 214, 220, 232, 290, 319, 320, 352, 428, 440, 464, 535, 580, 638, 640, 704, 856, 880, 928, 1070, 1160, 1177, 1276, 1408, 1595, 1712, 1760, 1856, 2140, 2320, 2354, 2552, 3103, 3190, 3424, 3520, 3712, 4280, 4640, 4708, 5104, 5885, 6206, 6380, 6848, 7040, 8560, 9280, 9416, 10208, 11770, 12412, 12760, 13696, 15515, 17120, 18560, 18832, 20416, 23540, 24824, 25520, 31030, 34133, 34240, 37664, 40832, 47080, 49648, 51040, 62060, 68266, 68480, 75328, 94160, 99296, 102080, 124120, 136532, 150656, 170665, 188320, 198592, 204160, 248240, 273064, 341330, 376640, 397184, 496480, 546128, 682660, 753280, 992960, 1092256, 1365320, 1985920, 2184512, 2730640, 4369024, 5461280, 10922560, 21845120]

約数ペア:

[(1, 21845120), (2, 10922560), (4, 5461280), (5, 4369024), (8, 2730640), (10, 2184512), (11, 1985920), (16, 1365320), (20, 1092256), (22, 992960), (29, 753280), (32, 682660), (40, 546128), (44, 496480), (55, 397184), (58, 376640), (64, 341330), (80, 273064), (88, 248240), (107, 204160), (110, 198592), (116, 188320), (128, 170665), (145, 150656), (160, 136532), (176, 124120), (214, 102080), (220, 99296), (232, 94160), (290, 75328), (319, 68480), (320, 68266), (352, 62060), (428, 51040), (440, 49648), (464, 47080), (535, 40832), (580, 37664), (638, 34240), (640, 34133), (704, 31030), (856, 25520), (880, 24824), (928, 23540), (1070, 20416), (1160, 18832), (1177, 18560), (1276, 17120), (1408, 15515), (1595, 13696), (1712, 12760), (1760, 12412), (1856, 11770), (2140, 10208), (2320, 9416), (2354, 9280), (2552, 8560), (3103, 7040), (3190, 6848), (3424, 6380), (3520, 6206), (3712, 5885), (4280, 5104), (4640, 4708)]