1500000

素因数分解:

$2^5\times 3^1\times 5^6$

素因数の和:43

約数の個数: 84

約数和(自身を含む): 4921812

約数和(自身を除く): 3421812

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 75, 80, 96, 100, 120, 125, 150, 160, 200, 240, 250, 300, 375, 400, 480, 500, 600, 625, 750, 800, 1000, 1200, 1250, 1500, 1875, 2000, 2400, 2500, 3000, 3125, 3750, 4000, 5000, 6000, 6250, 7500, 9375, 10000, 12000, 12500, 15000, 15625, 18750, 20000, 25000, 30000, 31250, 37500, 46875, 50000, 60000, 62500, 75000, 93750, 100000, 125000, 150000, 187500, 250000, 300000, 375000, 500000, 750000, 1500000]

約数ペア:

[(1, 1500000), (2, 750000), (3, 500000), (4, 375000), (5, 300000), (6, 250000), (8, 187500), (10, 150000), (12, 125000), (15, 100000), (16, 93750), (20, 75000), (24, 62500), (25, 60000), (30, 50000), (32, 46875), (40, 37500), (48, 31250), (50, 30000), (60, 25000), (75, 20000), (80, 18750), (96, 15625), (100, 15000), (120, 12500), (125, 12000), (150, 10000), (160, 9375), (200, 7500), (240, 6250), (250, 6000), (300, 5000), (375, 4000), (400, 3750), (480, 3125), (500, 3000), (600, 2500), (625, 2400), (750, 2000), (800, 1875), (1000, 1500), (1200, 1250)]