1440000

素因数分解:

$2^8\times 3^2\times 5^4$

素因数の和:42

約数の個数: 135

約数和(自身を含む): 5188183

約数和(自身を除く): 3748183

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, 3200, 3600, 3750, 3840, 4000, 4500, 4800, 5000, 5625, 5760, 6000, 6400, 7200, 7500, 8000, 9000, 9600, 10000, 11250, 11520, 12000, 14400, 15000, 16000, 18000, 19200, 20000, 22500, 24000, 28800, 30000, 32000, 36000, 40000, 45000, 48000, 57600, 60000, 72000, 80000, 90000, 96000, 120000, 144000, 160000, 180000, 240000, 288000, 360000, 480000, 720000, 1440000]

約数ペア:

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