210865720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 536739840

約数和(自身を除く): 325874120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 103, 104, 124, 127, 130, 155, 206, 248, 254, 260, 310, 403, 412, 508, 515, 520, 620, 635, 806, 824, 1016, 1030, 1240, 1270, 1339, 1612, 1651, 2015, 2060, 2540, 2678, 3193, 3224, 3302, 3937, 4030, 4120, 5080, 5356, 6386, 6604, 6695, 7874, 8060, 8255, 10712, 12772, 13081, 13208, 13390, 15748, 15965, 16120, 16510, 19685, 25544, 26162, 26780, 31496, 31930, 33020, 39370, 41509, 51181, 52324, 53560, 63860, 65405, 66040, 78740, 83018, 102362, 104648, 127720, 130810, 157480, 166036, 170053, 204724, 207545, 255905, 261620, 332072, 340106, 405511, 409448, 415090, 511810, 523240, 680212, 811022, 830180, 850265, 1023620, 1360424, 1622044, 1660360, 1700530, 2027555, 2047240, 3244088, 3401060, 4055110, 5271643, 6802120, 8110220, 10543286, 16220440, 21086572, 26358215, 42173144, 52716430, 105432860, 210865720]

約数ペア:

[(1, 210865720), (2, 105432860), (4, 52716430), (5, 42173144), (8, 26358215), (10, 21086572), (13, 16220440), (20, 10543286), (26, 8110220), (31, 6802120), (40, 5271643), (52, 4055110), (62, 3401060), (65, 3244088), (103, 2047240), (104, 2027555), (124, 1700530), (127, 1660360), (130, 1622044), (155, 1360424), (206, 1023620), (248, 850265), (254, 830180), (260, 811022), (310, 680212), (403, 523240), (412, 511810), (508, 415090), (515, 409448), (520, 405511), (620, 340106), (635, 332072), (806, 261620), (824, 255905), (1016, 207545), (1030, 204724), (1240, 170053), (1270, 166036), (1339, 157480), (1612, 130810), (1651, 127720), (2015, 104648), (2060, 102362), (2540, 83018), (2678, 78740), (3193, 66040), (3224, 65405), (3302, 63860), (3937, 53560), (4030, 52324), (4120, 51181), (5080, 41509), (5356, 39370), (6386, 33020), (6604, 31930), (6695, 31496), (7874, 26780), (8060, 26162), (8255, 25544), (10712, 19685), (12772, 16510), (13081, 16120), (13208, 15965), (13390, 15748)]