256560000

素因数分解:

$2^7\times 3^1\times 5^4\times {\mathrm{1069}}^1$

素因数の和:1106

約数の個数: 160

約数和(自身を含む): 852383400

約数和(自身を除く): 595823400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 125, 128, 150, 160, 192, 200, 240, 250, 300, 320, 375, 384, 400, 480, 500, 600, 625, 640, 750, 800, 960, 1000, 1069, 1200, 1250, 1500, 1600, 1875, 1920, 2000, 2138, 2400, 2500, 3000, 3200, 3207, 3750, 4000, 4276, 4800, 5000, 5345, 6000, 6414, 7500, 8000, 8552, 9600, 10000, 10690, 12000, 12828, 15000, 16000, 16035, 17104, 20000, 21380, 24000, 25656, 26725, 30000, 32070, 34208, 40000, 42760, 48000, 51312, 53450, 60000, 64140, 68416, 80000, 80175, 85520, 102624, 106900, 120000, 128280, 133625, 136832, 160350, 171040, 205248, 213800, 240000, 256560, 267250, 320700, 342080, 400875, 410496, 427600, 513120, 534500, 641400, 668125, 684160, 801750, 855200, 1026240, 1069000, 1282800, 1336250, 1603500, 1710400, 2004375, 2052480, 2138000, 2565600, 2672500, 3207000, 3420800, 4008750, 4276000, 5131200, 5345000, 6414000, 8017500, 8552000, 10262400, 10690000, 12828000, 16035000, 17104000, 21380000, 25656000, 32070000, 42760000, 51312000, 64140000, 85520000, 128280000, 256560000]

約数ペア:

[(1, 256560000), (2, 128280000), (3, 85520000), (4, 64140000), (5, 51312000), (6, 42760000), (8, 32070000), (10, 25656000), (12, 21380000), (15, 17104000), (16, 16035000), (20, 12828000), (24, 10690000), (25, 10262400), (30, 8552000), (32, 8017500), (40, 6414000), (48, 5345000), (50, 5131200), (60, 4276000), (64, 4008750), (75, 3420800), (80, 3207000), (96, 2672500), (100, 2565600), (120, 2138000), (125, 2052480), (128, 2004375), (150, 1710400), (160, 1603500), (192, 1336250), (200, 1282800), (240, 1069000), (250, 1026240), (300, 855200), (320, 801750), (375, 684160), (384, 668125), (400, 641400), (480, 534500), (500, 513120), (600, 427600), (625, 410496), (640, 400875), (750, 342080), (800, 320700), (960, 267250), (1000, 256560), (1069, 240000), (1200, 213800), (1250, 205248), (1500, 171040), (1600, 160350), (1875, 136832), (1920, 133625), (2000, 128280), (2138, 120000), (2400, 106900), (2500, 102624), (3000, 85520), (3200, 80175), (3207, 80000), (3750, 68416), (4000, 64140), (4276, 60000), (4800, 53450), (5000, 51312), (5345, 48000), (6000, 42760), (6414, 40000), (7500, 34208), (8000, 32070), (8552, 30000), (9600, 26725), (10000, 25656), (10690, 24000), (12000, 21380), (12828, 20000), (15000, 17104), (16000, 16035)]