204920651871

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{571}}^1\times {\mathrm{683}}^1$

素因数の和:1778

約数の個数: 80

約数和(自身を含む): 331387056000

約数和(自身を除く): 126466404129

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 499, 571, 683, 1053, 1497, 1713, 2049, 4491, 5139, 6147, 6487, 7423, 8879, 13473, 15417, 18441, 19461, 22269, 26637, 40419, 46251, 55323, 58383, 66807, 79911, 175149, 200421, 239733, 284929, 340817, 389993, 525447, 601263, 719199, 854787, 1022451, 1169979, 2564361, 3067353, 3509937, 3704077, 4430621, 5069909, 7693083, 9202059, 10529811, 11112231, 13291863, 15209727, 23079249, 27606177, 31589433, 33336693, 39875589, 45629181, 100010079, 119626767, 136887543, 194606507, 300030237, 358880301, 410662629, 583819521, 1751458563, 2529884591, 5254375689, 7589653773, 15763127067, 22768961319, 68306883957, 204920651871]

約数ペア:

[(1, 204920651871), (3, 68306883957), (9, 22768961319), (13, 15763127067), (27, 7589653773), (39, 5254375689), (81, 2529884591), (117, 1751458563), (351, 583819521), (499, 410662629), (571, 358880301), (683, 300030237), (1053, 194606507), (1497, 136887543), (1713, 119626767), (2049, 100010079), (4491, 45629181), (5139, 39875589), (6147, 33336693), (6487, 31589433), (7423, 27606177), (8879, 23079249), (13473, 15209727), (15417, 13291863), (18441, 11112231), (19461, 10529811), (22269, 9202059), (26637, 7693083), (40419, 5069909), (46251, 4430621), (55323, 3704077), (58383, 3509937), (66807, 3067353), (79911, 2564361), (175149, 1169979), (200421, 1022451), (239733, 854787), (284929, 719199), (340817, 601263), (389993, 525447)]