28909545

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 57108480

約数和(自身を除く): 28198935

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 43, 57, 95, 105, 129, 133, 215, 285, 301, 337, 399, 645, 665, 817, 903, 1011, 1505, 1685, 1995, 2359, 2451, 4085, 4515, 5055, 5719, 6403, 7077, 11795, 12255, 14491, 17157, 19209, 28595, 32015, 35385, 43473, 44821, 72455, 85785, 96045, 101437, 134463, 217365, 224105, 275329, 304311, 507185, 672315, 825987, 1376645, 1521555, 1927303, 4129935, 5781909, 9636515, 28909545]

約数ペア:

[(1, 28909545), (3, 9636515), (5, 5781909), (7, 4129935), (15, 1927303), (19, 1521555), (21, 1376645), (35, 825987), (43, 672315), (57, 507185), (95, 304311), (105, 275329), (129, 224105), (133, 217365), (215, 134463), (285, 101437), (301, 96045), (337, 85785), (399, 72455), (645, 44821), (665, 43473), (817, 35385), (903, 32015), (1011, 28595), (1505, 19209), (1685, 17157), (1995, 14491), (2359, 12255), (2451, 11795), (4085, 7077), (4515, 6403), (5055, 5719)]