20565648765

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{5153}}^1$

素因数の和:5268

約数の個数: 128

約数和(自身を含む): 40611870720

約数和(自身を除く): 20046221955

約数列:

[1, 3, 5, 9, 15, 17, 27, 37, 45, 47, 51, 85, 111, 135, 141, 153, 185, 235, 255, 333, 423, 459, 555, 629, 705, 765, 799, 999, 1269, 1665, 1739, 1887, 2115, 2295, 2397, 3145, 3995, 4995, 5153, 5217, 5661, 6345, 7191, 8695, 9435, 11985, 15459, 15651, 16983, 21573, 25765, 26085, 28305, 29563, 35955, 46377, 46953, 77295, 78255, 84915, 87601, 88689, 107865, 139131, 147815, 190661, 231885, 234765, 242191, 262803, 266067, 438005, 443445, 571983, 695655, 726573, 788409, 798201, 953305, 1210955, 1314015, 1330335, 1715949, 2179719, 2365227, 2859915, 3241237, 3632865, 3942045, 3991005, 4117247, 5147847, 6539157, 8579745, 8961067, 9723711, 10898595, 11826135, 12351741, 16206185, 20586235, 25739235, 26883201, 29171133, 32695785, 37055223, 44805335, 48618555, 61758705, 80649603, 87513399, 111165669, 134416005, 145855665, 152338139, 185276115, 241948809, 403248015, 437566995, 457014417, 555828345, 761690695, 1209744045, 1371043251, 2285072085, 4113129753, 6855216255, 20565648765]

約数ペア:

[(1, 20565648765), (3, 6855216255), (5, 4113129753), (9, 2285072085), (15, 1371043251), (17, 1209744045), (27, 761690695), (37, 555828345), (45, 457014417), (47, 437566995), (51, 403248015), (85, 241948809), (111, 185276115), (135, 152338139), (141, 145855665), (153, 134416005), (185, 111165669), (235, 87513399), (255, 80649603), (333, 61758705), (423, 48618555), (459, 44805335), (555, 37055223), (629, 32695785), (705, 29171133), (765, 26883201), (799, 25739235), (999, 20586235), (1269, 16206185), (1665, 12351741), (1739, 11826135), (1887, 10898595), (2115, 9723711), (2295, 8961067), (2397, 8579745), (3145, 6539157), (3995, 5147847), (4995, 4117247), (5153, 3991005), (5217, 3942045), (5661, 3632865), (6345, 3241237), (7191, 2859915), (8695, 2365227), (9435, 2179719), (11985, 1715949), (15459, 1330335), (15651, 1314015), (16983, 1210955), (21573, 953305), (25765, 798201), (26085, 788409), (28305, 726573), (29563, 695655), (35955, 571983), (46377, 443445), (46953, 438005), (77295, 266067), (78255, 262803), (84915, 242191), (87601, 234765), (88689, 231885), (107865, 190661), (139131, 147815)]