20172729885

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{263}}^1$

素因数の和:528

約数の個数: 192

約数和(自身を含む): 42124769280

約数和(自身を除く): 21952039395

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 53, 55, 77, 105, 147, 159, 165, 179, 231, 245, 263, 265, 371, 385, 537, 539, 583, 735, 789, 795, 895, 1113, 1155, 1253, 1315, 1617, 1749, 1841, 1855, 1969, 2597, 2685, 2695, 2893, 2915, 3759, 3945, 4081, 5523, 5565, 5907, 6265, 7791, 8085, 8679, 8745, 8771, 9205, 9487, 9845, 12243, 12887, 12985, 13783, 13939, 14465, 18795, 20251, 20405, 26313, 27615, 28461, 28567, 29535, 38661, 38955, 41349, 41817, 43395, 43855, 47077, 47435, 60753, 61215, 64435, 66409, 68915, 69695, 85701, 96481, 97573, 101255, 104357, 131565, 141231, 141757, 142305, 142835, 153329, 193305, 199227, 206745, 209085, 235385, 289443, 292719, 303765, 313071, 329539, 332045, 425271, 428505, 459987, 464863, 482405, 487865, 517847, 521785, 683011, 706155, 708785, 730499, 766645, 988617, 996135, 1073303, 1394589, 1447215, 1463595, 1553541, 1565355, 1647695, 2049033, 2126355, 2191497, 2299935, 2306773, 2324315, 2495081, 2589235, 3219909, 3415055, 3624929, 3652495, 4943085, 5113493, 5366515, 6920319, 6972945, 7485243, 7513121, 7767705, 10245165, 10874787, 10957485, 11533865, 12475405, 15340479, 16099545, 17465567, 18124645, 22539363, 25374503, 25567465, 27445891, 34601595, 37426215, 37565605, 52396701, 54373935, 76123509, 76702395, 82337673, 87327835, 112696815, 122258969, 126872515, 137229455, 192121237, 261983505, 366776907, 380617545, 411688365, 576363711, 611294845, 960606185, 1344848659, 1833884535, 2881818555, 4034545977, 6724243295, 20172729885]

約数ペア:

[(1, 20172729885), (3, 6724243295), (5, 4034545977), (7, 2881818555), (11, 1833884535), (15, 1344848659), (21, 960606185), (33, 611294845), (35, 576363711), (49, 411688365), (53, 380617545), (55, 366776907), (77, 261983505), (105, 192121237), (147, 137229455), (159, 126872515), (165, 122258969), (179, 112696815), (231, 87327835), (245, 82337673), (263, 76702395), (265, 76123509), (371, 54373935), (385, 52396701), (537, 37565605), (539, 37426215), (583, 34601595), (735, 27445891), (789, 25567465), (795, 25374503), (895, 22539363), (1113, 18124645), (1155, 17465567), (1253, 16099545), (1315, 15340479), (1617, 12475405), (1749, 11533865), (1841, 10957485), (1855, 10874787), (1969, 10245165), (2597, 7767705), (2685, 7513121), (2695, 7485243), (2893, 6972945), (2915, 6920319), (3759, 5366515), (3945, 5113493), (4081, 4943085), (5523, 3652495), (5565, 3624929), (5907, 3415055), (6265, 3219909), (7791, 2589235), (8085, 2495081), (8679, 2324315), (8745, 2306773), (8771, 2299935), (9205, 2191497), (9487, 2126355), (9845, 2049033), (12243, 1647695), (12887, 1565355), (12985, 1553541), (13783, 1463595), (13939, 1447215), (14465, 1394589), (18795, 1073303), (20251, 996135), (20405, 988617), (26313, 766645), (27615, 730499), (28461, 708785), (28567, 706155), (29535, 683011), (38661, 521785), (38955, 517847), (41349, 487865), (41817, 482405), (43395, 464863), (43855, 459987), (47077, 428505), (47435, 425271), (60753, 332045), (61215, 329539), (64435, 313071), (66409, 303765), (68915, 292719), (69695, 289443), (85701, 235385), (96481, 209085), (97573, 206745), (101255, 199227), (104357, 193305), (131565, 153329), (141231, 142835), (141757, 142305)]