20804076485

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{33223}}^1$

素因数の和:33437

約数の個数: 32

約数和(自身を含む): 27126731520

約数和(自身を除く): 6322655035

約数列:

[1, 5, 17, 53, 85, 139, 265, 695, 901, 2363, 4505, 7367, 11815, 33223, 36835, 125239, 166115, 564791, 626195, 1760819, 2823955, 4617997, 8804095, 23089985, 29933923, 78505949, 149669615, 244753841, 392529745, 1223769205, 4160815297, 20804076485]

約数ペア:

[(1, 20804076485), (5, 4160815297), (17, 1223769205), (53, 392529745), (85, 244753841), (139, 149669615), (265, 78505949), (695, 29933923), (901, 23089985), (2363, 8804095), (4505, 4617997), (7367, 2823955), (11815, 1760819), (33223, 626195), (36835, 564791), (125239, 166115)]