21981509280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{15264937}}^1$

素因数の和:15264958

約数の個数: 72

約数和(自身を含む): 75011905332

約数和(自身を除く): 53030396052

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 15264937, 30529874, 45794811, 61059748, 76324685, 91589622, 122119496, 137384433, 152649370, 183179244, 228974055, 244238992, 274768866, 305298740, 366358488, 457948110, 488477984, 549537732, 610597480, 686922165, 732716976, 915896220, 1099075464, 1221194960, 1373844330, 1465433952, 1831792440, 2198150928, 2442389920, 2747688660, 3663584880, 4396301856, 5495377320, 7327169760, 10990754640, 21981509280]

約数ペア:

[(1, 21981509280), (2, 10990754640), (3, 7327169760), (4, 5495377320), (5, 4396301856), (6, 3663584880), (8, 2747688660), (9, 2442389920), (10, 2198150928), (12, 1831792440), (15, 1465433952), (16, 1373844330), (18, 1221194960), (20, 1099075464), (24, 915896220), (30, 732716976), (32, 686922165), (36, 610597480), (40, 549537732), (45, 488477984), (48, 457948110), (60, 366358488), (72, 305298740), (80, 274768866), (90, 244238992), (96, 228974055), (120, 183179244), (144, 152649370), (160, 137384433), (180, 122119496), (240, 91589622), (288, 76324685), (360, 61059748), (480, 45794811), (720, 30529874), (1440, 15264937)]