18013500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{4003}}^1$

素因数の和:4028

約数の個数: 72

約数和(自身を含む): 56840784

約数和(自身を除く): 38827284

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4003, 4500, 8006, 12009, 16012, 20015, 24018, 36027, 40030, 48036, 60045, 72054, 80060, 100075, 120090, 144108, 180135, 200150, 240180, 300225, 360270, 400300, 500375, 600450, 720540, 900675, 1000750, 1200900, 1501125, 1801350, 2001500, 3002250, 3602700, 4503375, 6004500, 9006750, 18013500]

約数ペア:

[(1, 18013500), (2, 9006750), (3, 6004500), (4, 4503375), (5, 3602700), (6, 3002250), (9, 2001500), (10, 1801350), (12, 1501125), (15, 1200900), (18, 1000750), (20, 900675), (25, 720540), (30, 600450), (36, 500375), (45, 400300), (50, 360270), (60, 300225), (75, 240180), (90, 200150), (100, 180135), (125, 144108), (150, 120090), (180, 100075), (225, 80060), (250, 72054), (300, 60045), (375, 48036), (450, 40030), (500, 36027), (750, 24018), (900, 20015), (1125, 16012), (1500, 12009), (2250, 8006), (4003, 4500)]