208089640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6661}}^1$

素因数の和:6754

約数の個数: 64

約数和(自身を含む): 518037120

約数和(自身を除く): 309947480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1420, 1562, 2840, 3124, 3905, 6248, 6661, 7810, 13322, 15620, 26644, 31240, 33305, 53288, 66610, 73271, 133220, 146542, 266440, 293084, 366355, 472931, 586168, 732710, 945862, 1465420, 1891724, 2364655, 2930840, 3783448, 4729310, 5202241, 9458620, 10404482, 18917240, 20808964, 26011205, 41617928, 52022410, 104044820, 208089640]

約数ペア:

[(1, 208089640), (2, 104044820), (4, 52022410), (5, 41617928), (8, 26011205), (10, 20808964), (11, 18917240), (20, 10404482), (22, 9458620), (40, 5202241), (44, 4729310), (55, 3783448), (71, 2930840), (88, 2364655), (110, 1891724), (142, 1465420), (220, 945862), (284, 732710), (355, 586168), (440, 472931), (568, 366355), (710, 293084), (781, 266440), (1420, 146542), (1562, 133220), (2840, 73271), (3124, 66610), (3905, 53288), (6248, 33305), (6661, 31240), (7810, 26644), (13322, 15620)]