256076640

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{19759}}^1$

素因数の和:19786

約数の個数: 120

約数和(自身を含む): 903782880

約数和(自身を除く): 647706240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1296, 1440, 1620, 2160, 2592, 3240, 4320, 6480, 12960, 19759, 39518, 59277, 79036, 98795, 118554, 158072, 177831, 197590, 237108, 296385, 316144, 355662, 395180, 474216, 533493, 592770, 632288, 711324, 790360, 889155, 948432, 1066986, 1185540, 1422648, 1580720, 1600479, 1778310, 1896864, 2133972, 2371080, 2667465, 2845296, 3161440, 3200958, 3556620, 4267944, 4742160, 5334930, 5690592, 6401916, 7113240, 8002395, 8535888, 9484320, 10669860, 12803832, 14226480, 16004790, 17071776, 21339720, 25607664, 28452960, 32009580, 42679440, 51215328, 64019160, 85358880, 128038320, 256076640]

約数ペア:

[(1, 256076640), (2, 128038320), (3, 85358880), (4, 64019160), (5, 51215328), (6, 42679440), (8, 32009580), (9, 28452960), (10, 25607664), (12, 21339720), (15, 17071776), (16, 16004790), (18, 14226480), (20, 12803832), (24, 10669860), (27, 9484320), (30, 8535888), (32, 8002395), (36, 7113240), (40, 6401916), (45, 5690592), (48, 5334930), (54, 4742160), (60, 4267944), (72, 3556620), (80, 3200958), (81, 3161440), (90, 2845296), (96, 2667465), (108, 2371080), (120, 2133972), (135, 1896864), (144, 1778310), (160, 1600479), (162, 1580720), (180, 1422648), (216, 1185540), (240, 1066986), (270, 948432), (288, 889155), (324, 790360), (360, 711324), (405, 632288), (432, 592770), (480, 533493), (540, 474216), (648, 395180), (720, 355662), (810, 316144), (864, 296385), (1080, 237108), (1296, 197590), (1440, 177831), (1620, 158072), (2160, 118554), (2592, 98795), (3240, 79036), (4320, 59277), (6480, 39518), (12960, 19759)]