80416000

素因数分解:

$2^8\times 5^3\times 7^1\times {\mathrm{359}}^1$

素因数の和:397

約数の個数: 144

約数和(自身を含む): 229582080

約数和(自身を除く): 149166080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 125, 128, 140, 160, 175, 200, 224, 250, 256, 280, 320, 350, 359, 400, 448, 500, 560, 640, 700, 718, 800, 875, 896, 1000, 1120, 1280, 1400, 1436, 1600, 1750, 1792, 1795, 2000, 2240, 2513, 2800, 2872, 3200, 3500, 3590, 4000, 4480, 5026, 5600, 5744, 6400, 7000, 7180, 8000, 8960, 8975, 10052, 11200, 11488, 12565, 14000, 14360, 16000, 17950, 20104, 22400, 22976, 25130, 28000, 28720, 32000, 35900, 40208, 44800, 44875, 45952, 50260, 56000, 57440, 62825, 71800, 80416, 89750, 91904, 100520, 112000, 114880, 125650, 143600, 160832, 179500, 201040, 224000, 229760, 251300, 287200, 314125, 321664, 359000, 402080, 459520, 502600, 574400, 628250, 643328, 718000, 804160, 1005200, 1148800, 1256500, 1436000, 1608320, 2010400, 2297600, 2513000, 2872000, 3216640, 4020800, 5026000, 5744000, 8041600, 10052000, 11488000, 16083200, 20104000, 40208000, 80416000]

約数ペア:

[(1, 80416000), (2, 40208000), (4, 20104000), (5, 16083200), (7, 11488000), (8, 10052000), (10, 8041600), (14, 5744000), (16, 5026000), (20, 4020800), (25, 3216640), (28, 2872000), (32, 2513000), (35, 2297600), (40, 2010400), (50, 1608320), (56, 1436000), (64, 1256500), (70, 1148800), (80, 1005200), (100, 804160), (112, 718000), (125, 643328), (128, 628250), (140, 574400), (160, 502600), (175, 459520), (200, 402080), (224, 359000), (250, 321664), (256, 314125), (280, 287200), (320, 251300), (350, 229760), (359, 224000), (400, 201040), (448, 179500), (500, 160832), (560, 143600), (640, 125650), (700, 114880), (718, 112000), (800, 100520), (875, 91904), (896, 89750), (1000, 80416), (1120, 71800), (1280, 62825), (1400, 57440), (1436, 56000), (1600, 50260), (1750, 45952), (1792, 44875), (1795, 44800), (2000, 40208), (2240, 35900), (2513, 32000), (2800, 28720), (2872, 28000), (3200, 25130), (3500, 22976), (3590, 22400), (4000, 20104), (4480, 17950), (5026, 16000), (5600, 14360), (5744, 14000), (6400, 12565), (7000, 11488), (7180, 11200), (8000, 10052), (8960, 8975)]