81355785

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:582

約数の個数: 64

約数和(自身を含む): 156659712

約数和(自身を除く): 75303927

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 43, 105, 111, 129, 185, 215, 259, 301, 487, 555, 645, 777, 903, 1295, 1461, 1505, 1591, 2435, 3409, 3885, 4515, 4773, 7305, 7955, 10227, 11137, 17045, 18019, 20941, 23865, 33411, 51135, 54057, 55685, 62823, 90095, 104705, 126133, 146587, 167055, 270285, 314115, 378399, 439761, 630665, 732935, 774817, 1891995, 2198805, 2324451, 3874085, 5423719, 11622255, 16271157, 27118595, 81355785]

約数ペア:

[(1, 81355785), (3, 27118595), (5, 16271157), (7, 11622255), (15, 5423719), (21, 3874085), (35, 2324451), (37, 2198805), (43, 1891995), (105, 774817), (111, 732935), (129, 630665), (185, 439761), (215, 378399), (259, 314115), (301, 270285), (487, 167055), (555, 146587), (645, 126133), (777, 104705), (903, 90095), (1295, 62823), (1461, 55685), (1505, 54057), (1591, 51135), (2435, 33411), (3409, 23865), (3885, 20941), (4515, 18019), (4773, 17045), (7305, 11137), (7955, 10227)]