257450871260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{821}}^1\times {\mathrm{2903}}^1$

素因数の和:4235

約数の個数: 96

約数和(自身を含む): 591921437184

約数和(自身を除く): 334470565924

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 491, 821, 982, 1642, 1964, 2455, 2903, 3284, 4105, 4910, 5401, 5806, 8210, 9031, 9820, 10802, 11612, 14515, 16420, 18062, 21604, 27005, 29030, 31933, 36124, 45155, 54010, 58060, 63866, 90310, 108020, 127732, 159665, 180620, 319330, 403111, 638660, 806222, 1425373, 1612444, 2015555, 2383363, 2850746, 4031110, 4434221, 4766726, 5701492, 7126865, 8062220, 8868442, 9533452, 11916815, 14253730, 15679103, 17736884, 22171105, 23833630, 26216993, 28507460, 31358206, 44342210, 47667260, 52433986, 62716412, 78395515, 88684420, 104867972, 131084965, 156791030, 262169930, 313582060, 524339860, 1170231233, 2340462466, 4680924932, 5851156165, 11702312330, 12872543563, 23404624660, 25745087126, 51490174252, 64362717815, 128725435630, 257450871260]

約数ペア:

[(1, 257450871260), (2, 128725435630), (4, 64362717815), (5, 51490174252), (10, 25745087126), (11, 23404624660), (20, 12872543563), (22, 11702312330), (44, 5851156165), (55, 4680924932), (110, 2340462466), (220, 1170231233), (491, 524339860), (821, 313582060), (982, 262169930), (1642, 156791030), (1964, 131084965), (2455, 104867972), (2903, 88684420), (3284, 78395515), (4105, 62716412), (4910, 52433986), (5401, 47667260), (5806, 44342210), (8210, 31358206), (9031, 28507460), (9820, 26216993), (10802, 23833630), (11612, 22171105), (14515, 17736884), (16420, 15679103), (18062, 14253730), (21604, 11916815), (27005, 9533452), (29030, 8868442), (31933, 8062220), (36124, 7126865), (45155, 5701492), (54010, 4766726), (58060, 4434221), (63866, 4031110), (90310, 2850746), (108020, 2383363), (127732, 2015555), (159665, 1612444), (180620, 1425373), (319330, 806222), (403111, 638660)]