81344648

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:187

約数の個数: 128

約数和(自身を含む): 202245120

約数和(自身を除く): 120900472

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 37, 43, 44, 56, 74, 77, 83, 86, 88, 148, 154, 166, 172, 259, 296, 301, 308, 332, 344, 407, 473, 518, 581, 602, 616, 664, 814, 913, 946, 1036, 1162, 1204, 1591, 1628, 1826, 1892, 2072, 2324, 2408, 2849, 3071, 3182, 3256, 3311, 3569, 3652, 3784, 4648, 5698, 6142, 6364, 6391, 6622, 7138, 7304, 11137, 11396, 12284, 12728, 12782, 13244, 14276, 17501, 21497, 22274, 22792, 24568, 24983, 25564, 26488, 28552, 33781, 35002, 39259, 42994, 44548, 49966, 51128, 67562, 70004, 78518, 85988, 89096, 99932, 122507, 132053, 135124, 140008, 157036, 171976, 199864, 236467, 245014, 264106, 270248, 274813, 314072, 472934, 490028, 528212, 549626, 924371, 945868, 980056, 1056424, 1099252, 1452583, 1848742, 1891736, 2198504, 2905166, 3697484, 5810332, 7394968, 10168081, 11620664, 20336162, 40672324, 81344648]

約数ペア:

[(1, 81344648), (2, 40672324), (4, 20336162), (7, 11620664), (8, 10168081), (11, 7394968), (14, 5810332), (22, 3697484), (28, 2905166), (37, 2198504), (43, 1891736), (44, 1848742), (56, 1452583), (74, 1099252), (77, 1056424), (83, 980056), (86, 945868), (88, 924371), (148, 549626), (154, 528212), (166, 490028), (172, 472934), (259, 314072), (296, 274813), (301, 270248), (308, 264106), (332, 245014), (344, 236467), (407, 199864), (473, 171976), (518, 157036), (581, 140008), (602, 135124), (616, 132053), (664, 122507), (814, 99932), (913, 89096), (946, 85988), (1036, 78518), (1162, 70004), (1204, 67562), (1591, 51128), (1628, 49966), (1826, 44548), (1892, 42994), (2072, 39259), (2324, 35002), (2408, 33781), (2849, 28552), (3071, 26488), (3182, 25564), (3256, 24983), (3311, 24568), (3569, 22792), (3652, 22274), (3784, 21497), (4648, 17501), (5698, 14276), (6142, 13244), (6364, 12782), (6391, 12728), (6622, 12284), (7138, 11396), (7304, 11137)]