178996485

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 307334016

約数和(自身を除く): 128337531

約数列:

[1, 3, 5, 15, 17, 51, 85, 157, 255, 263, 289, 471, 785, 789, 867, 1315, 1445, 2355, 2669, 3945, 4335, 4471, 8007, 13345, 13413, 22355, 40035, 41291, 45373, 67065, 76007, 123873, 136119, 206455, 226865, 228021, 380035, 619365, 680595, 701947, 1140105, 2105841, 3509735, 10529205, 11933099, 35799297, 59665495, 178996485]

約数ペア:

[(1, 178996485), (3, 59665495), (5, 35799297), (15, 11933099), (17, 10529205), (51, 3509735), (85, 2105841), (157, 1140105), (255, 701947), (263, 680595), (289, 619365), (471, 380035), (785, 228021), (789, 226865), (867, 206455), (1315, 136119), (1445, 123873), (2355, 76007), (2669, 67065), (3945, 45373), (4335, 41291), (4471, 40035), (8007, 22355), (13345, 13413)]