19200000

素因数分解:

$2^{11}\times 3^1\times 5^5$

素因数の和:50

約数の個数: 144

約数和(自身を含む): 63980280

約数和(自身を除く): 44780280

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, 256, 300, 320, 375, 384, 400, 480, 500, 512, 600, 625, 640, 750, 768, 800, 960, 1000, 1024, 1200, 1250, 1280, 1500, 1536, 1600, 1875, 1920, 2000, 2048, 2400, 2500, 2560, 3000, 3072, 3125, 3200, 3750, 3840, 4000, 4800, 5000, 5120, 6000, 6144, 6250, 6400, 7500, 7680, 8000, 9375, 9600, 10000, 10240, 12000, 12500, 12800, 15000, 15360, 16000, 18750, 19200, 20000, 24000, 25000, 25600, 30000, 30720, 32000, 37500, 38400, 40000, 48000, 50000, 51200, 60000, 64000, 75000, 76800, 80000, 96000, 100000, 120000, 128000, 150000, 153600, 160000, 192000, 200000, 240000, 256000, 300000, 320000, 384000, 400000, 480000, 600000, 640000, 768000, 800000, 960000, 1200000, 1280000, 1600000, 1920000, 2400000, 3200000, 3840000, 4800000, 6400000, 9600000, 19200000]

約数ペア:

[(1, 19200000), (2, 9600000), (3, 6400000), (4, 4800000), (5, 3840000), (6, 3200000), (8, 2400000), (10, 1920000), (12, 1600000), (15, 1280000), (16, 1200000), (20, 960000), (24, 800000), (25, 768000), (30, 640000), (32, 600000), (40, 480000), (48, 400000), (50, 384000), (60, 320000), (64, 300000), (75, 256000), (80, 240000), (96, 200000), (100, 192000), (120, 160000), (125, 153600), (128, 150000), (150, 128000), (160, 120000), (192, 100000), (200, 96000), (240, 80000), (250, 76800), (256, 75000), (300, 64000), (320, 60000), (375, 51200), (384, 50000), (400, 48000), (480, 40000), (500, 38400), (512, 37500), (600, 32000), (625, 30720), (640, 30000), (750, 25600), (768, 25000), (800, 24000), (960, 20000), (1000, 19200), (1024, 18750), (1200, 16000), (1250, 15360), (1280, 15000), (1500, 12800), (1536, 12500), (1600, 12000), (1875, 10240), (1920, 10000), (2000, 9600), (2048, 9375), (2400, 8000), (2500, 7680), (2560, 7500), (3000, 6400), (3072, 6250), (3125, 6144), (3200, 6000), (3750, 5120), (3840, 5000), (4000, 4800)]