128345841

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{263}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 207182976

約数和(自身を除く): 78837135

約数列:

[1, 3, 9, 13, 39, 43, 97, 117, 129, 263, 291, 387, 559, 789, 873, 1261, 1677, 2367, 3419, 3783, 4171, 5031, 10257, 11309, 11349, 12513, 25511, 30771, 33927, 37539, 54223, 76533, 101781, 147017, 162669, 229599, 331643, 441051, 488007, 994929, 1096973, 1323153, 2984787, 3290919, 9872757, 14260649, 42781947, 128345841]

約数ペア:

[(1, 128345841), (3, 42781947), (9, 14260649), (13, 9872757), (39, 3290919), (43, 2984787), (97, 1323153), (117, 1096973), (129, 994929), (263, 488007), (291, 441051), (387, 331643), (559, 229599), (789, 162669), (873, 147017), (1261, 101781), (1677, 76533), (2367, 54223), (3419, 37539), (3783, 33927), (4171, 30771), (5031, 25511), (10257, 12513), (11309, 11349)]