900000

素因数分解:

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

素因数の和:41

約数の個数: 108

約数和(自身を含む): 3199014

約数和(自身を除く): 2299014

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, 72, 75, 80, 90, 96, 100, 120, 125, 144, 150, 160, 180, 200, 225, 240, 250, 288, 300, 360, 375, 400, 450, 480, 500, 600, 625, 720, 750, 800, 900, 1000, 1125, 1200, 1250, 1440, 1500, 1800, 1875, 2000, 2250, 2400, 2500, 3000, 3125, 3600, 3750, 4000, 4500, 5000, 5625, 6000, 6250, 7200, 7500, 9000, 9375, 10000, 11250, 12000, 12500, 15000, 18000, 18750, 20000, 22500, 25000, 28125, 30000, 36000, 37500, 45000, 50000, 56250, 60000, 75000, 90000, 100000, 112500, 150000, 180000, 225000, 300000, 450000, 900000]

約数ペア:

[(1, 900000), (2, 450000), (3, 300000), (4, 225000), (5, 180000), (6, 150000), (8, 112500), (9, 100000), (10, 90000), (12, 75000), (15, 60000), (16, 56250), (18, 50000), (20, 45000), (24, 37500), (25, 36000), (30, 30000), (32, 28125), (36, 25000), (40, 22500), (45, 20000), (48, 18750), (50, 18000), (60, 15000), (72, 12500), (75, 12000), (80, 11250), (90, 10000), (96, 9375), (100, 9000), (120, 7500), (125, 7200), (144, 6250), (150, 6000), (160, 5625), (180, 5000), (200, 4500), (225, 4000), (240, 3750), (250, 3600), (288, 3125), (300, 3000), (360, 2500), (375, 2400), (400, 2250), (450, 2000), (480, 1875), (500, 1800), (600, 1500), (625, 1440), (720, 1250), (750, 1200), (800, 1125), (900, 1000)]