28712175

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 50413440

約数和(自身を除く): 21701265

約数列:

[1, 3, 5, 15, 25, 29, 43, 75, 87, 129, 145, 215, 307, 435, 645, 725, 921, 1075, 1247, 1535, 2175, 3225, 3741, 4605, 6235, 7675, 8903, 13201, 18705, 23025, 26709, 31175, 39603, 44515, 66005, 93525, 133545, 198015, 222575, 330025, 382829, 667725, 990075, 1148487, 1914145, 5742435, 9570725, 28712175]

約数ペア:

[(1, 28712175), (3, 9570725), (5, 5742435), (15, 1914145), (25, 1148487), (29, 990075), (43, 667725), (75, 382829), (87, 330025), (129, 222575), (145, 198015), (215, 133545), (307, 93525), (435, 66005), (645, 44515), (725, 39603), (921, 31175), (1075, 26709), (1247, 23025), (1535, 18705), (2175, 13201), (3225, 8903), (3741, 7675), (4605, 6235)]