28160000

素因数分解:

$2^{12}\times 5^4\times {\mathrm{11}}^1$

素因数の和:55

約数の個数: 130

約数和(自身を含む): 76766052

約数和(自身を除く): 48606052

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 125, 128, 160, 176, 200, 220, 250, 256, 275, 320, 352, 400, 440, 500, 512, 550, 625, 640, 704, 800, 880, 1000, 1024, 1100, 1250, 1280, 1375, 1408, 1600, 1760, 2000, 2048, 2200, 2500, 2560, 2750, 2816, 3200, 3520, 4000, 4096, 4400, 5000, 5120, 5500, 5632, 6400, 6875, 7040, 8000, 8800, 10000, 10240, 11000, 11264, 12800, 13750, 14080, 16000, 17600, 20000, 20480, 22000, 22528, 25600, 27500, 28160, 32000, 35200, 40000, 44000, 45056, 51200, 55000, 56320, 64000, 70400, 80000, 88000, 102400, 110000, 112640, 128000, 140800, 160000, 176000, 220000, 225280, 256000, 281600, 320000, 352000, 440000, 512000, 563200, 640000, 704000, 880000, 1126400, 1280000, 1408000, 1760000, 2560000, 2816000, 3520000, 5632000, 7040000, 14080000, 28160000]

約数ペア:

[(1, 28160000), (2, 14080000), (4, 7040000), (5, 5632000), (8, 3520000), (10, 2816000), (11, 2560000), (16, 1760000), (20, 1408000), (22, 1280000), (25, 1126400), (32, 880000), (40, 704000), (44, 640000), (50, 563200), (55, 512000), (64, 440000), (80, 352000), (88, 320000), (100, 281600), (110, 256000), (125, 225280), (128, 220000), (160, 176000), (176, 160000), (200, 140800), (220, 128000), (250, 112640), (256, 110000), (275, 102400), (320, 88000), (352, 80000), (400, 70400), (440, 64000), (500, 56320), (512, 55000), (550, 51200), (625, 45056), (640, 44000), (704, 40000), (800, 35200), (880, 32000), (1000, 28160), (1024, 27500), (1100, 25600), (1250, 22528), (1280, 22000), (1375, 20480), (1408, 20000), (1600, 17600), (1760, 16000), (2000, 14080), (2048, 13750), (2200, 12800), (2500, 11264), (2560, 11000), (2750, 10240), (2816, 10000), (3200, 8800), (3520, 8000), (4000, 7040), (4096, 6875), (4400, 6400), (5000, 5632), (5120, 5500)]