20565543195

素因数分解:

$3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{995669}}^1$

素因数の和:995706

約数の個数: 48

約数和(自身を含む): 39141779040

約数和(自身を除く): 18576235845

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 405, 459, 765, 1215, 1377, 2295, 4131, 6885, 20655, 995669, 2987007, 4978345, 8961021, 14935035, 16926373, 26883063, 44805105, 50779119, 80649189, 84631865, 134415315, 152337357, 241947567, 253895595, 403245945, 457012071, 761686785, 1209737835, 1371036213, 2285060355, 4113108639, 6855181065, 20565543195]

約数ペア:

[(1, 20565543195), (3, 6855181065), (5, 4113108639), (9, 2285060355), (15, 1371036213), (17, 1209737835), (27, 761686785), (45, 457012071), (51, 403245945), (81, 253895595), (85, 241947567), (135, 152337357), (153, 134415315), (243, 84631865), (255, 80649189), (405, 50779119), (459, 44805105), (765, 26883063), (1215, 16926373), (1377, 14935035), (2295, 8961021), (4131, 4978345), (6885, 2987007), (20655, 995669)]