1800005400

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{1000003}}^1$

素因数の和:1000025

約数の個数: 72

約数和(自身を含む): 6045024180

約数和(自身を除く): 4245018780

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, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800, 1000003, 2000006, 3000009, 4000012, 5000015, 6000018, 8000024, 9000027, 10000030, 12000036, 15000045, 18000054, 20000060, 24000072, 25000075, 30000090, 36000108, 40000120, 45000135, 50000150, 60000180, 72000216, 75000225, 90000270, 100000300, 120000360, 150000450, 180000540, 200000600, 225000675, 300000900, 360001080, 450001350, 600001800, 900002700, 1800005400]

約数ペア:

[(1, 1800005400), (2, 900002700), (3, 600001800), (4, 450001350), (5, 360001080), (6, 300000900), (8, 225000675), (9, 200000600), (10, 180000540), (12, 150000450), (15, 120000360), (18, 100000300), (20, 90000270), (24, 75000225), (25, 72000216), (30, 60000180), (36, 50000150), (40, 45000135), (45, 40000120), (50, 36000108), (60, 30000090), (72, 25000075), (75, 24000072), (90, 20000060), (100, 18000054), (120, 15000045), (150, 12000036), (180, 10000030), (200, 9000027), (225, 8000024), (300, 6000018), (360, 5000015), (450, 4000012), (600, 3000009), (900, 2000006), (1800, 1000003)]