81686385

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{2797}}^1$

素因数の和:2878

約数の個数: 48

約数和(自身を含む): 157135680

約数和(自身を除く): 75449295

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 59, 99, 165, 177, 295, 495, 531, 649, 885, 1947, 2655, 2797, 3245, 5841, 8391, 9735, 13985, 25173, 29205, 30767, 41955, 92301, 125865, 153835, 165023, 276903, 461505, 495069, 825115, 1384515, 1485207, 1815253, 2475345, 5445759, 7426035, 9076265, 16337277, 27228795, 81686385]

約数ペア:

[(1, 81686385), (3, 27228795), (5, 16337277), (9, 9076265), (11, 7426035), (15, 5445759), (33, 2475345), (45, 1815253), (55, 1485207), (59, 1384515), (99, 825115), (165, 495069), (177, 461505), (295, 276903), (495, 165023), (531, 153835), (649, 125865), (885, 92301), (1947, 41955), (2655, 30767), (2797, 29205), (3245, 25173), (5841, 13985), (8391, 9735)]