1640761264

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{65027}}^1$

素因数の和:65137

約数の個数: 40

約数和(自身を含む): 3386658240

約数和(自身を除く): 1745896976

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 83, 152, 166, 304, 332, 664, 1328, 1577, 3154, 6308, 12616, 25232, 65027, 130054, 260108, 520216, 1040432, 1235513, 2471026, 4942052, 5397241, 9884104, 10794482, 19768208, 21588964, 43177928, 86355856, 102547579, 205095158, 410190316, 820380632, 1640761264]

約数ペア:

[(1, 1640761264), (2, 820380632), (4, 410190316), (8, 205095158), (16, 102547579), (19, 86355856), (38, 43177928), (76, 21588964), (83, 19768208), (152, 10794482), (166, 9884104), (304, 5397241), (332, 4942052), (664, 2471026), (1328, 1235513), (1577, 1040432), (3154, 520216), (6308, 260108), (12616, 130054), (25232, 65027)]