28788225

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{337}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 51300288

約数和(自身を除く): 22512063

約数列:

[1, 3, 5, 15, 17, 25, 51, 67, 75, 85, 201, 255, 335, 337, 425, 1005, 1011, 1139, 1275, 1675, 1685, 3417, 5025, 5055, 5695, 5729, 8425, 17085, 17187, 22579, 25275, 28475, 28645, 67737, 85425, 85935, 112895, 143225, 338685, 383843, 429675, 564475, 1151529, 1693425, 1919215, 5757645, 9596075, 28788225]

約数ペア:

[(1, 28788225), (3, 9596075), (5, 5757645), (15, 1919215), (17, 1693425), (25, 1151529), (51, 564475), (67, 429675), (75, 383843), (85, 338685), (201, 143225), (255, 112895), (335, 85935), (337, 85425), (425, 67737), (1005, 28645), (1011, 28475), (1139, 25275), (1275, 22579), (1675, 17187), (1685, 17085), (3417, 8425), (5025, 5729), (5055, 5695)]