81135475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{227}}^1$

素因数の和:312

約数の個数: 36

約数和(自身を含む): 110812104

約数和(自身を除く): 29676629

約数列:

[1, 5, 17, 25, 29, 85, 145, 227, 425, 493, 725, 841, 1135, 2465, 3859, 4205, 5675, 6583, 12325, 14297, 19295, 21025, 32915, 71485, 96475, 111911, 164575, 190907, 357425, 559555, 954535, 2797775, 3245419, 4772675, 16227095, 81135475]

約数ペア:

[(1, 81135475), (5, 16227095), (17, 4772675), (25, 3245419), (29, 2797775), (85, 954535), (145, 559555), (227, 357425), (425, 190907), (493, 164575), (725, 111911), (841, 96475), (1135, 71485), (2465, 32915), (3859, 21025), (4205, 19295), (5675, 14297), (6583, 12325)]