81198045

素因数分解:

$3^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1277}}^1$

素因数の和:1451

約数の個数: 40

約数和(自身を含む): 146596824

約数和(自身を除く): 65398779

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 157, 405, 471, 785, 1277, 1413, 2355, 3831, 4239, 6385, 7065, 11493, 12717, 19155, 21195, 34479, 57465, 63585, 103437, 172395, 200489, 517185, 601467, 1002445, 1804401, 3007335, 5413203, 9022005, 16239609, 27066015, 81198045]

約数ペア:

[(1, 81198045), (3, 27066015), (5, 16239609), (9, 9022005), (15, 5413203), (27, 3007335), (45, 1804401), (81, 1002445), (135, 601467), (157, 517185), (405, 200489), (471, 172395), (785, 103437), (1277, 63585), (1413, 57465), (2355, 34479), (3831, 21195), (4239, 19155), (6385, 12717), (7065, 11493)]