28781412

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:209

約数の個数: 96

約数和(自身を含む): 77220864

約数和(自身を除く): 48439452

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 37, 44, 66, 71, 74, 83, 111, 132, 142, 148, 166, 213, 222, 249, 284, 332, 407, 426, 444, 498, 781, 814, 852, 913, 996, 1221, 1562, 1628, 1826, 2343, 2442, 2627, 2739, 3071, 3124, 3652, 4686, 4884, 5254, 5478, 5893, 6142, 7881, 9213, 9372, 10508, 10956, 11786, 12284, 15762, 17679, 18426, 23572, 28897, 31524, 33781, 35358, 36852, 57794, 64823, 67562, 70716, 86691, 101343, 115588, 129646, 135124, 173382, 194469, 202686, 218041, 259292, 346764, 388938, 405372, 436082, 654123, 777876, 872164, 1308246, 2398451, 2616492, 4796902, 7195353, 9593804, 14390706, 28781412]

約数ペア:

[(1, 28781412), (2, 14390706), (3, 9593804), (4, 7195353), (6, 4796902), (11, 2616492), (12, 2398451), (22, 1308246), (33, 872164), (37, 777876), (44, 654123), (66, 436082), (71, 405372), (74, 388938), (83, 346764), (111, 259292), (132, 218041), (142, 202686), (148, 194469), (166, 173382), (213, 135124), (222, 129646), (249, 115588), (284, 101343), (332, 86691), (407, 70716), (426, 67562), (444, 64823), (498, 57794), (781, 36852), (814, 35358), (852, 33781), (913, 31524), (996, 28897), (1221, 23572), (1562, 18426), (1628, 17679), (1826, 15762), (2343, 12284), (2442, 11786), (2627, 10956), (2739, 10508), (3071, 9372), (3124, 9213), (3652, 7881), (4686, 6142), (4884, 5893), (5254, 5478)]