72000000

素因数分解:

$2^9\times 3^2\times 5^6$

素因数の和:54

約数の個数: 210

約数和(自身を含む): 259742769

約数和(自身を除く): 187742769

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 64, 72, 75, 80, 90, 96, 100, 120, 125, 128, 144, 150, 160, 180, 192, 200, 225, 240, 250, 256, 288, 300, 320, 360, 375, 384, 400, 450, 480, 500, 512, 576, 600, 625, 640, 720, 750, 768, 800, 900, 960, 1000, 1125, 1152, 1200, 1250, 1280, 1440, 1500, 1536, 1600, 1800, 1875, 1920, 2000, 2250, 2304, 2400, 2500, 2560, 2880, 3000, 3125, 3200, 3600, 3750, 3840, 4000, 4500, 4608, 4800, 5000, 5625, 5760, 6000, 6250, 6400, 7200, 7500, 7680, 8000, 9000, 9375, 9600, 10000, 11250, 11520, 12000, 12500, 12800, 14400, 15000, 15625, 16000, 18000, 18750, 19200, 20000, 22500, 23040, 24000, 25000, 28125, 28800, 30000, 31250, 32000, 36000, 37500, 38400, 40000, 45000, 46875, 48000, 50000, 56250, 57600, 60000, 62500, 64000, 72000, 75000, 80000, 90000, 93750, 96000, 100000, 112500, 115200, 120000, 125000, 140625, 144000, 150000, 160000, 180000, 187500, 192000, 200000, 225000, 240000, 250000, 281250, 288000, 300000, 320000, 360000, 375000, 400000, 450000, 480000, 500000, 562500, 576000, 600000, 720000, 750000, 800000, 900000, 960000, 1000000, 1125000, 1200000, 1440000, 1500000, 1600000, 1800000, 2000000, 2250000, 2400000, 2880000, 3000000, 3600000, 4000000, 4500000, 4800000, 6000000, 7200000, 8000000, 9000000, 12000000, 14400000, 18000000, 24000000, 36000000, 72000000]

約数ペア:

[(1, 72000000), (2, 36000000), (3, 24000000), (4, 18000000), (5, 14400000), (6, 12000000), (8, 9000000), (9, 8000000), (10, 7200000), (12, 6000000), (15, 4800000), (16, 4500000), (18, 4000000), (20, 3600000), (24, 3000000), (25, 2880000), (30, 2400000), (32, 2250000), (36, 2000000), (40, 1800000), (45, 1600000), (48, 1500000), (50, 1440000), (60, 1200000), (64, 1125000), (72, 1000000), (75, 960000), (80, 900000), (90, 800000), (96, 750000), (100, 720000), (120, 600000), (125, 576000), (128, 562500), (144, 500000), (150, 480000), (160, 450000), (180, 400000), (192, 375000), (200, 360000), (225, 320000), (240, 300000), (250, 288000), (256, 281250), (288, 250000), (300, 240000), (320, 225000), (360, 200000), (375, 192000), (384, 187500), (400, 180000), (450, 160000), (480, 150000), (500, 144000), (512, 140625), (576, 125000), (600, 120000), (625, 115200), (640, 112500), (720, 100000), (750, 96000), (768, 93750), (800, 90000), (900, 80000), (960, 75000), (1000, 72000), (1125, 64000), (1152, 62500), (1200, 60000), (1250, 57600), (1280, 56250), (1440, 50000), (1500, 48000), (1536, 46875), (1600, 45000), (1800, 40000), (1875, 38400), (1920, 37500), (2000, 36000), (2250, 32000), (2304, 31250), (2400, 30000), (2500, 28800), (2560, 28125), (2880, 25000), (3000, 24000), (3125, 23040), (3200, 22500), (3600, 20000), (3750, 19200), (3840, 18750), (4000, 18000), (4500, 16000), (4608, 15625), (4800, 15000), (5000, 14400), (5625, 12800), (5760, 12500), (6000, 12000), (6250, 11520), (6400, 11250), (7200, 10000), (7500, 9600), (7680, 9375), (8000, 9000)]