82480000

素因数分解:

$2^7\times 5^4\times {\mathrm{1031}}^1$

素因数の和:1065

約数の個数: 80

約数和(自身を含む): 205527960

約数和(自身を除く): 123047960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 625, 640, 800, 1000, 1031, 1250, 1600, 2000, 2062, 2500, 3200, 4000, 4124, 5000, 5155, 8000, 8248, 10000, 10310, 16000, 16496, 20000, 20620, 25775, 32992, 40000, 41240, 51550, 65984, 80000, 82480, 103100, 128875, 131968, 164960, 206200, 257750, 329920, 412400, 515500, 644375, 659840, 824800, 1031000, 1288750, 1649600, 2062000, 2577500, 3299200, 4124000, 5155000, 8248000, 10310000, 16496000, 20620000, 41240000, 82480000]

約数ペア:

[(1, 82480000), (2, 41240000), (4, 20620000), (5, 16496000), (8, 10310000), (10, 8248000), (16, 5155000), (20, 4124000), (25, 3299200), (32, 2577500), (40, 2062000), (50, 1649600), (64, 1288750), (80, 1031000), (100, 824800), (125, 659840), (128, 644375), (160, 515500), (200, 412400), (250, 329920), (320, 257750), (400, 206200), (500, 164960), (625, 131968), (640, 128875), (800, 103100), (1000, 82480), (1031, 80000), (1250, 65984), (1600, 51550), (2000, 41240), (2062, 40000), (2500, 32992), (3200, 25775), (4000, 20620), (4124, 20000), (5000, 16496), (5155, 16000), (8000, 10310), (8248, 10000)]