208127738

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{997}}^1$

素因数の和:1087

約数の個数: 64

約数和(自身を含む): 407758848

約数和(自身を除く): 199631110

約数列:

[1, 2, 7, 13, 14, 26, 31, 37, 62, 74, 91, 182, 217, 259, 403, 434, 481, 518, 806, 962, 997, 1147, 1994, 2294, 2821, 3367, 5642, 6734, 6979, 8029, 12961, 13958, 14911, 16058, 25922, 29822, 30907, 36889, 61814, 73778, 90727, 104377, 181454, 208754, 216349, 258223, 401791, 432698, 479557, 516446, 803582, 959114, 1143559, 2287118, 2812537, 3356899, 5625074, 6713798, 8004913, 14866267, 16009826, 29732534, 104063869, 208127738]

約数ペア:

[(1, 208127738), (2, 104063869), (7, 29732534), (13, 16009826), (14, 14866267), (26, 8004913), (31, 6713798), (37, 5625074), (62, 3356899), (74, 2812537), (91, 2287118), (182, 1143559), (217, 959114), (259, 803582), (403, 516446), (434, 479557), (481, 432698), (518, 401791), (806, 258223), (962, 216349), (997, 208754), (1147, 181454), (1994, 104377), (2294, 90727), (2821, 73778), (3367, 61814), (5642, 36889), (6734, 30907), (6979, 29822), (8029, 25922), (12961, 16058), (13958, 14911)]