1287978000

素因数分解:

$2^4\times 3^1\times 5^3\times {\mathrm{214663}}^1$

素因数の和:214689

約数の個数: 80

約数和(自身を含む): 4152460416

約数和(自身を除く): 2864482416

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 125, 150, 200, 240, 250, 300, 375, 400, 500, 600, 750, 1000, 1200, 1500, 2000, 3000, 6000, 214663, 429326, 643989, 858652, 1073315, 1287978, 1717304, 2146630, 2575956, 3219945, 3434608, 4293260, 5151912, 5366575, 6439890, 8586520, 10303824, 10733150, 12879780, 16099725, 17173040, 21466300, 25759560, 26832875, 32199450, 42932600, 51519120, 53665750, 64398900, 80498625, 85865200, 107331500, 128797800, 160997250, 214663000, 257595600, 321994500, 429326000, 643989000, 1287978000]

約数ペア:

[(1, 1287978000), (2, 643989000), (3, 429326000), (4, 321994500), (5, 257595600), (6, 214663000), (8, 160997250), (10, 128797800), (12, 107331500), (15, 85865200), (16, 80498625), (20, 64398900), (24, 53665750), (25, 51519120), (30, 42932600), (40, 32199450), (48, 26832875), (50, 25759560), (60, 21466300), (75, 17173040), (80, 16099725), (100, 12879780), (120, 10733150), (125, 10303824), (150, 8586520), (200, 6439890), (240, 5366575), (250, 5151912), (300, 4293260), (375, 3434608), (400, 3219945), (500, 2575956), (600, 2146630), (750, 1717304), (1000, 1287978), (1200, 1073315), (1500, 858652), (2000, 643989), (3000, 429326), (6000, 214663)]