131081405

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2797}}^1$

素因数の和:2925

約数の個数: 32

約数和(自身を含む): 195546624

約数和(自身を除く): 64465219

約数列:

[1, 5, 7, 13, 35, 65, 91, 103, 455, 515, 721, 1339, 2797, 3605, 6695, 9373, 13985, 19579, 36361, 46865, 97895, 181805, 254527, 288091, 1272635, 1440455, 2016637, 3745183, 10083185, 18725915, 26216281, 131081405]

約数ペア:

[(1, 131081405), (5, 26216281), (7, 18725915), (13, 10083185), (35, 3745183), (65, 2016637), (91, 1440455), (103, 1272635), (455, 288091), (515, 254527), (721, 181805), (1339, 97895), (2797, 46865), (3605, 36361), (6695, 19579), (9373, 13985)]