519998960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^2$

素因数の和:311

約数の個数: 120

約数和(自身を含む): 1354663296

約数和(自身を除く): 834664336

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 127, 130, 155, 208, 248, 254, 260, 310, 403, 496, 508, 520, 620, 635, 806, 1016, 1040, 1240, 1270, 1612, 1651, 2015, 2032, 2480, 2540, 3224, 3302, 3937, 4030, 5080, 6448, 6604, 7874, 8060, 8255, 10160, 13208, 15748, 16120, 16129, 16510, 19685, 26416, 31496, 32240, 32258, 33020, 39370, 51181, 62992, 64516, 66040, 78740, 80645, 102362, 129032, 132080, 157480, 161290, 204724, 209677, 255905, 258064, 314960, 322580, 409448, 419354, 499999, 511810, 645160, 818896, 838708, 999998, 1023620, 1048385, 1290320, 1677416, 1999996, 2047240, 2096770, 2499995, 3354832, 3999992, 4094480, 4193540, 4999990, 6499987, 7999984, 8387080, 9999980, 12999974, 16774160, 19999960, 25999948, 32499935, 39999920, 51999896, 64999870, 103999792, 129999740, 259999480, 519998960]

約数ペア:

[(1, 519998960), (2, 259999480), (4, 129999740), (5, 103999792), (8, 64999870), (10, 51999896), (13, 39999920), (16, 32499935), (20, 25999948), (26, 19999960), (31, 16774160), (40, 12999974), (52, 9999980), (62, 8387080), (65, 7999984), (80, 6499987), (104, 4999990), (124, 4193540), (127, 4094480), (130, 3999992), (155, 3354832), (208, 2499995), (248, 2096770), (254, 2047240), (260, 1999996), (310, 1677416), (403, 1290320), (496, 1048385), (508, 1023620), (520, 999998), (620, 838708), (635, 818896), (806, 645160), (1016, 511810), (1040, 499999), (1240, 419354), (1270, 409448), (1612, 322580), (1651, 314960), (2015, 258064), (2032, 255905), (2480, 209677), (2540, 204724), (3224, 161290), (3302, 157480), (3937, 132080), (4030, 129032), (5080, 102362), (6448, 80645), (6604, 78740), (7874, 66040), (8060, 64516), (8255, 62992), (10160, 51181), (13208, 39370), (15748, 33020), (16120, 32258), (16129, 32240), (16510, 31496), (19685, 26416)]