28208695

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 10111433

約数列:

[1, 5, 17, 23, 47, 85, 115, 235, 307, 391, 799, 1081, 1535, 1955, 3995, 5219, 5405, 7061, 14429, 18377, 26095, 35305, 72145, 91885, 120037, 245293, 331867, 600185, 1226465, 1659335, 5641739, 28208695]

約数ペア:

[(1, 28208695), (5, 5641739), (17, 1659335), (23, 1226465), (47, 600185), (85, 331867), (115, 245293), (235, 120037), (307, 91885), (391, 72145), (799, 35305), (1081, 26095), (1535, 18377), (1955, 14429), (3995, 7061), (5219, 5405)]