81475272

素因数分解:

$2^3\times 3^2\times {\mathrm{389}}^1\times {\mathrm{2909}}^1$

素因数の和:3310

約数の個数: 48

約数和(自身を含む): 221305500

約数和(自身を除く): 139830228

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 389, 778, 1167, 1556, 2334, 2909, 3112, 3501, 4668, 5818, 7002, 8727, 9336, 11636, 14004, 17454, 23272, 26181, 28008, 34908, 52362, 69816, 104724, 209448, 1131601, 2263202, 3394803, 4526404, 6789606, 9052808, 10184409, 13579212, 20368818, 27158424, 40737636, 81475272]

約数ペア:

[(1, 81475272), (2, 40737636), (3, 27158424), (4, 20368818), (6, 13579212), (8, 10184409), (9, 9052808), (12, 6789606), (18, 4526404), (24, 3394803), (36, 2263202), (72, 1131601), (389, 209448), (778, 104724), (1167, 69816), (1556, 52362), (2334, 34908), (2909, 28008), (3112, 26181), (3501, 23272), (4668, 17454), (5818, 14004), (7002, 11636), (8727, 9336)]