81538885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 107308800

約数和(自身を除く): 25769915

約数列:

[1, 5, 17, 59, 71, 85, 229, 295, 355, 1003, 1145, 1207, 3893, 4189, 5015, 6035, 13511, 16259, 19465, 20945, 67555, 71213, 81295, 229687, 276403, 356065, 959281, 1148435, 1382015, 4796405, 16307777, 81538885]

約数ペア:

[(1, 81538885), (5, 16307777), (17, 4796405), (59, 1382015), (71, 1148435), (85, 959281), (229, 356065), (295, 276403), (355, 229687), (1003, 81295), (1145, 71213), (1207, 67555), (3893, 20945), (4189, 19465), (5015, 16259), (6035, 13511)]