280291293

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{8731}}^1$

素因数の和:8810

約数の個数: 32

約数和(自身を含む): 440092800

約数和(自身を除く): 159801507

約数列:

[1, 3, 9, 27, 29, 41, 87, 123, 261, 369, 783, 1107, 1189, 3567, 8731, 10701, 26193, 32103, 78579, 235737, 253199, 357971, 759597, 1073913, 2278791, 3221739, 6836373, 9665217, 10381159, 31143477, 93430431, 280291293]

約数ペア:

[(1, 280291293), (3, 93430431), (9, 31143477), (27, 10381159), (29, 9665217), (41, 6836373), (87, 3221739), (123, 2278791), (261, 1073913), (369, 759597), (783, 357971), (1107, 253199), (1189, 235737), (3567, 78579), (8731, 32103), (10701, 26193)]