81562364

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2663}}^1$

素因数の和:2730

約数の個数: 48

約数和(自身を含む): 167086080

約数和(自身を除く): 85523716

約数列:

[1, 2, 4, 13, 19, 26, 31, 38, 52, 62, 76, 124, 247, 403, 494, 589, 806, 988, 1178, 1612, 2356, 2663, 5326, 7657, 10652, 15314, 30628, 34619, 50597, 69238, 82553, 101194, 138476, 165106, 202388, 330212, 657761, 1073189, 1315522, 1568507, 2146378, 2631044, 3137014, 4292756, 6274028, 20390591, 40781182, 81562364]

約数ペア:

[(1, 81562364), (2, 40781182), (4, 20390591), (13, 6274028), (19, 4292756), (26, 3137014), (31, 2631044), (38, 2146378), (52, 1568507), (62, 1315522), (76, 1073189), (124, 657761), (247, 330212), (403, 202388), (494, 165106), (589, 138476), (806, 101194), (988, 82553), (1178, 69238), (1612, 50597), (2356, 34619), (2663, 30628), (5326, 15314), (7657, 10652)]