28272255

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 51186912

約数和(自身を除く): 22914657

約数列:

[1, 3, 5, 11, 15, 33, 37, 55, 111, 121, 165, 185, 363, 407, 421, 555, 605, 1221, 1263, 1815, 2035, 2105, 4477, 4631, 6105, 6315, 13431, 13893, 15577, 22385, 23155, 46731, 50941, 67155, 69465, 77885, 152823, 171347, 233655, 254705, 514041, 764115, 856735, 1884817, 2570205, 5654451, 9424085, 28272255]

約数ペア:

[(1, 28272255), (3, 9424085), (5, 5654451), (11, 2570205), (15, 1884817), (33, 856735), (37, 764115), (55, 514041), (111, 254705), (121, 233655), (165, 171347), (185, 152823), (363, 77885), (407, 69465), (421, 67155), (555, 50941), (605, 46731), (1221, 23155), (1263, 22385), (1815, 15577), (2035, 13893), (2105, 13431), (4477, 6315), (4631, 6105)]