225000

素因数分解:

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

素因数の和:37

約数の個数: 72

約数和(自身を含む): 761670

約数和(自身を除く): 536670

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 125, 150, 180, 200, 225, 250, 300, 360, 375, 450, 500, 600, 625, 750, 900, 1000, 1125, 1250, 1500, 1800, 1875, 2250, 2500, 3000, 3125, 3750, 4500, 5000, 5625, 6250, 7500, 9000, 9375, 11250, 12500, 15000, 18750, 22500, 25000, 28125, 37500, 45000, 56250, 75000, 112500, 225000]

約数ペア:

[(1, 225000), (2, 112500), (3, 75000), (4, 56250), (5, 45000), (6, 37500), (8, 28125), (9, 25000), (10, 22500), (12, 18750), (15, 15000), (18, 12500), (20, 11250), (24, 9375), (25, 9000), (30, 7500), (36, 6250), (40, 5625), (45, 5000), (50, 4500), (60, 3750), (72, 3125), (75, 3000), (90, 2500), (100, 2250), (120, 1875), (125, 1800), (150, 1500), (180, 1250), (200, 1125), (225, 1000), (250, 900), (300, 750), (360, 625), (375, 600), (450, 500)]