7200000

素因数分解:

$2^8\times 3^2\times 5^5$

素因数の和:47

約数の個数: 162

約数和(自身を含む): 25947558

約数和(自身を除く): 18747558

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, 576, 600, 625, 640, 720, 750, 768, 800, 900, 960, 1000, 1125, 1152, 1200, 1250, 1280, 1440, 1500, 1600, 1800, 1875, 1920, 2000, 2250, 2304, 2400, 2500, 2880, 3000, 3125, 3200, 3600, 3750, 3840, 4000, 4500, 4800, 5000, 5625, 5760, 6000, 6250, 6400, 7200, 7500, 8000, 9000, 9375, 9600, 10000, 11250, 11520, 12000, 12500, 14400, 15000, 16000, 18000, 18750, 19200, 20000, 22500, 24000, 25000, 28125, 28800, 30000, 32000, 36000, 37500, 40000, 45000, 48000, 50000, 56250, 57600, 60000, 72000, 75000, 80000, 90000, 96000, 100000, 112500, 120000, 144000, 150000, 160000, 180000, 200000, 225000, 240000, 288000, 300000, 360000, 400000, 450000, 480000, 600000, 720000, 800000, 900000, 1200000, 1440000, 1800000, 2400000, 3600000, 7200000]

約数ペア:

[(1, 7200000), (2, 3600000), (3, 2400000), (4, 1800000), (5, 1440000), (6, 1200000), (8, 900000), (9, 800000), (10, 720000), (12, 600000), (15, 480000), (16, 450000), (18, 400000), (20, 360000), (24, 300000), (25, 288000), (30, 240000), (32, 225000), (36, 200000), (40, 180000), (45, 160000), (48, 150000), (50, 144000), (60, 120000), (64, 112500), (72, 100000), (75, 96000), (80, 90000), (90, 80000), (96, 75000), (100, 72000), (120, 60000), (125, 57600), (128, 56250), (144, 50000), (150, 48000), (160, 45000), (180, 40000), (192, 37500), (200, 36000), (225, 32000), (240, 30000), (250, 28800), (256, 28125), (288, 25000), (300, 24000), (320, 22500), (360, 20000), (375, 19200), (384, 18750), (400, 18000), (450, 16000), (480, 15000), (500, 14400), (576, 12500), (600, 12000), (625, 11520), (640, 11250), (720, 10000), (750, 9600), (768, 9375), (800, 9000), (900, 8000), (960, 7500), (1000, 7200), (1125, 6400), (1152, 6250), (1200, 6000), (1250, 5760), (1280, 5625), (1440, 5000), (1500, 4800), (1600, 4500), (1800, 4000), (1875, 3840), (1920, 3750), (2000, 3600), (2250, 3200), (2304, 3125), (2400, 3000), (2500, 2880)]