78439785

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{2213}}^1$

素因数の和:2377

約数の個数: 32

約数和(自身を含む): 133902720

約数和(自身を除く): 55462935

約数列:

[1, 3, 5, 15, 17, 51, 85, 139, 255, 417, 695, 2085, 2213, 2363, 6639, 7089, 11065, 11815, 33195, 35445, 37621, 112863, 188105, 307607, 564315, 922821, 1538035, 4614105, 5229319, 15687957, 26146595, 78439785]

約数ペア:

[(1, 78439785), (3, 26146595), (5, 15687957), (15, 5229319), (17, 4614105), (51, 1538035), (85, 922821), (139, 564315), (255, 307607), (417, 188105), (695, 112863), (2085, 37621), (2213, 35445), (2363, 33195), (6639, 11815), (7089, 11065)]