28993755

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 57784320

約数和(自身を除く): 28790565

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 37, 51, 85, 105, 111, 119, 185, 255, 259, 357, 439, 555, 595, 629, 777, 1295, 1317, 1785, 1887, 2195, 3073, 3145, 3885, 4403, 6585, 7463, 9219, 9435, 13209, 15365, 16243, 22015, 22389, 37315, 46095, 48729, 52241, 66045, 81215, 111945, 113701, 156723, 243645, 261205, 276131, 341103, 568505, 783615, 828393, 1380655, 1705515, 1932917, 4141965, 5798751, 9664585, 28993755]

約数ペア:

[(1, 28993755), (3, 9664585), (5, 5798751), (7, 4141965), (15, 1932917), (17, 1705515), (21, 1380655), (35, 828393), (37, 783615), (51, 568505), (85, 341103), (105, 276131), (111, 261205), (119, 243645), (185, 156723), (255, 113701), (259, 111945), (357, 81215), (439, 66045), (555, 52241), (595, 48729), (629, 46095), (777, 37315), (1295, 22389), (1317, 22015), (1785, 16243), (1887, 15365), (2195, 13209), (3073, 9435), (3145, 9219), (3885, 7463), (4403, 6585)]