78451551

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 130944000

約数和(自身を除く): 52492449

約数列:

[1, 3, 9, 19, 23, 27, 57, 61, 69, 109, 171, 183, 207, 327, 437, 513, 549, 621, 981, 1159, 1311, 1403, 1647, 2071, 2507, 2943, 3477, 3933, 4209, 6213, 6649, 7521, 10431, 11799, 12627, 18639, 19947, 22563, 26657, 31293, 37881, 47633, 55917, 59841, 67689, 79971, 126331, 142899, 152927, 179523, 239913, 378993, 428697, 458781, 719739, 1136979, 1286091, 1376343, 2905613, 3410937, 4129029, 8716839, 26150517, 78451551]

約数ペア:

[(1, 78451551), (3, 26150517), (9, 8716839), (19, 4129029), (23, 3410937), (27, 2905613), (57, 1376343), (61, 1286091), (69, 1136979), (109, 719739), (171, 458781), (183, 428697), (207, 378993), (327, 239913), (437, 179523), (513, 152927), (549, 142899), (621, 126331), (981, 79971), (1159, 67689), (1311, 59841), (1403, 55917), (1647, 47633), (2071, 37881), (2507, 31293), (2943, 26657), (3477, 22563), (3933, 19947), (4209, 18639), (6213, 12627), (6649, 11799), (7521, 10431)]