300000

素因数分解:

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

素因数の和:38

約数の個数: 72

約数和(自身を含む): 984312

約数和(自身を除く): 684312

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, 18750, 20000, 25000, 30000, 37500, 50000, 60000, 75000, 100000, 150000, 300000]

約数ペア:

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