80778519

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2971}}^1$

素因数の和:3052

約数の個数: 32

約数和(自身を含む): 128390400

約数和(自身を除く): 47611881

約数列:

[1, 3, 9, 19, 27, 53, 57, 159, 171, 477, 513, 1007, 1431, 2971, 3021, 8913, 9063, 26739, 27189, 56449, 80217, 157463, 169347, 472389, 508041, 1417167, 1524123, 2991797, 4251501, 8975391, 26926173, 80778519]

約数ペア:

[(1, 80778519), (3, 26926173), (9, 8975391), (19, 4251501), (27, 2991797), (53, 1524123), (57, 1417167), (159, 508041), (171, 472389), (477, 169347), (513, 157463), (1007, 80217), (1431, 56449), (2971, 27189), (3021, 26739), (8913, 9063)]