81255681

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{521}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 133765632

約数和(自身を除く): 52509951

約数列:

[1, 3, 9, 13, 31, 39, 43, 93, 117, 129, 279, 387, 403, 521, 559, 1209, 1333, 1563, 1677, 3627, 3999, 4689, 5031, 6773, 11997, 16151, 17329, 20319, 22403, 48453, 51987, 60957, 67209, 145359, 155961, 201627, 209963, 291239, 629889, 694493, 873717, 1889667, 2083479, 2621151, 6250437, 9028409, 27085227, 81255681]

約数ペア:

[(1, 81255681), (3, 27085227), (9, 9028409), (13, 6250437), (31, 2621151), (39, 2083479), (43, 1889667), (93, 873717), (117, 694493), (129, 629889), (279, 291239), (387, 209963), (403, 201627), (521, 155961), (559, 145359), (1209, 67209), (1333, 60957), (1563, 51987), (1677, 48453), (3627, 22403), (3999, 20319), (4689, 17329), (5031, 16151), (6773, 11997)]