204928000

素因数分解:

$2^{10}\times 5^3\times {\mathrm{1601}}^1$

素因数の和:1636

約数の個数: 88

約数和(自身を含む): 511569864

約数和(自身を除く): 306641864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 512, 640, 800, 1000, 1024, 1280, 1600, 1601, 2000, 2560, 3200, 3202, 4000, 5120, 6400, 6404, 8000, 8005, 12800, 12808, 16000, 16010, 25600, 25616, 32000, 32020, 40025, 51232, 64000, 64040, 80050, 102464, 128000, 128080, 160100, 200125, 204928, 256160, 320200, 400250, 409856, 512320, 640400, 800500, 819712, 1024640, 1280800, 1601000, 1639424, 2049280, 2561600, 3202000, 4098560, 5123200, 6404000, 8197120, 10246400, 12808000, 20492800, 25616000, 40985600, 51232000, 102464000, 204928000]

約数ペア:

[(1, 204928000), (2, 102464000), (4, 51232000), (5, 40985600), (8, 25616000), (10, 20492800), (16, 12808000), (20, 10246400), (25, 8197120), (32, 6404000), (40, 5123200), (50, 4098560), (64, 3202000), (80, 2561600), (100, 2049280), (125, 1639424), (128, 1601000), (160, 1280800), (200, 1024640), (250, 819712), (256, 800500), (320, 640400), (400, 512320), (500, 409856), (512, 400250), (640, 320200), (800, 256160), (1000, 204928), (1024, 200125), (1280, 160100), (1600, 128080), (1601, 128000), (2000, 102464), (2560, 80050), (3200, 64040), (3202, 64000), (4000, 51232), (5120, 40025), (6400, 32020), (6404, 32000), (8000, 25616), (8005, 25600), (12800, 16010), (12808, 16000)]