1125000

素因数分解:

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

素因数の和:42

約数の個数: 84

約数和(自身を含む): 3808545

約数和(自身を除く): 2683545

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, 15625, 18750, 22500, 25000, 28125, 31250, 37500, 45000, 46875, 56250, 62500, 75000, 93750, 112500, 125000, 140625, 187500, 225000, 281250, 375000, 562500, 1125000]

約数ペア:

[(1, 1125000), (2, 562500), (3, 375000), (4, 281250), (5, 225000), (6, 187500), (8, 140625), (9, 125000), (10, 112500), (12, 93750), (15, 75000), (18, 62500), (20, 56250), (24, 46875), (25, 45000), (30, 37500), (36, 31250), (40, 28125), (45, 25000), (50, 22500), (60, 18750), (72, 15625), (75, 15000), (90, 12500), (100, 11250), (120, 9375), (125, 9000), (150, 7500), (180, 6250), (200, 5625), (225, 5000), (250, 4500), (300, 3750), (360, 3125), (375, 3000), (450, 2500), (500, 2250), (600, 1875), (625, 1800), (750, 1500), (900, 1250), (1000, 1125)]