2250000

素因数分解:

$2^4\times 3^2\times 5^6$

素因数の和:44

約数の個数: 105

約数和(自身を含む): 7870993

約数和(自身を除く): 5620993

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 100, 120, 125, 144, 150, 180, 200, 225, 240, 250, 300, 360, 375, 400, 450, 500, 600, 625, 720, 750, 900, 1000, 1125, 1200, 1250, 1500, 1800, 1875, 2000, 2250, 2500, 3000, 3125, 3600, 3750, 4500, 5000, 5625, 6000, 6250, 7500, 9000, 9375, 10000, 11250, 12500, 15000, 15625, 18000, 18750, 22500, 25000, 28125, 30000, 31250, 37500, 45000, 46875, 50000, 56250, 62500, 75000, 90000, 93750, 112500, 125000, 140625, 150000, 187500, 225000, 250000, 281250, 375000, 450000, 562500, 750000, 1125000, 2250000]

約数ペア:

[(1, 2250000), (2, 1125000), (3, 750000), (4, 562500), (5, 450000), (6, 375000), (8, 281250), (9, 250000), (10, 225000), (12, 187500), (15, 150000), (16, 140625), (18, 125000), (20, 112500), (24, 93750), (25, 90000), (30, 75000), (36, 62500), (40, 56250), (45, 50000), (48, 46875), (50, 45000), (60, 37500), (72, 31250), (75, 30000), (80, 28125), (90, 25000), (100, 22500), (120, 18750), (125, 18000), (144, 15625), (150, 15000), (180, 12500), (200, 11250), (225, 10000), (240, 9375), (250, 9000), (300, 7500), (360, 6250), (375, 6000), (400, 5625), (450, 5000), (500, 4500), (600, 3750), (625, 3600), (720, 3125), (750, 3000), (900, 2500), (1000, 2250), (1125, 2000), (1200, 1875), (1250, 1800)]