19680135

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1087}}^1$

素因数の和:1183

約数の個数: 32

約数和(自身を含む): 33841152

約数和(自身を除く): 14161017

約数列:

[1, 3, 5, 15, 17, 51, 71, 85, 213, 255, 355, 1065, 1087, 1207, 3261, 3621, 5435, 6035, 16305, 18105, 18479, 55437, 77177, 92395, 231531, 277185, 385885, 1157655, 1312009, 3936027, 6560045, 19680135]

約数ペア:

[(1, 19680135), (3, 6560045), (5, 3936027), (15, 1312009), (17, 1157655), (51, 385885), (71, 277185), (85, 231531), (213, 92395), (255, 77177), (355, 55437), (1065, 18479), (1087, 18105), (1207, 16305), (3261, 6035), (3621, 5435)]