257807520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{179033}}^1$

素因数の和:179054

約数の個数: 72

約数和(自身を含む): 879773076

約数和(自身を除く): 621965556

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 179033, 358066, 537099, 716132, 895165, 1074198, 1432264, 1611297, 1790330, 2148396, 2685495, 2864528, 3222594, 3580660, 4296792, 5370990, 5729056, 6445188, 7161320, 8056485, 8593584, 10741980, 12890376, 14322640, 16112970, 17187168, 21483960, 25780752, 28645280, 32225940, 42967920, 51561504, 64451880, 85935840, 128903760, 257807520]

約数ペア:

[(1, 257807520), (2, 128903760), (3, 85935840), (4, 64451880), (5, 51561504), (6, 42967920), (8, 32225940), (9, 28645280), (10, 25780752), (12, 21483960), (15, 17187168), (16, 16112970), (18, 14322640), (20, 12890376), (24, 10741980), (30, 8593584), (32, 8056485), (36, 7161320), (40, 6445188), (45, 5729056), (48, 5370990), (60, 4296792), (72, 3580660), (80, 3222594), (90, 2864528), (96, 2685495), (120, 2148396), (144, 1790330), (160, 1611297), (180, 1432264), (240, 1074198), (288, 895165), (360, 716132), (480, 537099), (720, 358066), (1440, 179033)]