18000064000

素因数分解:

$2^9\times 5^3\times {\mathrm{281251}}^1$

素因数の和:281284

約数の個数: 80

約数和(自身を含む): 44884444176

約数和(自身を除く): 26884380176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 512, 640, 800, 1000, 1280, 1600, 2000, 2560, 3200, 4000, 6400, 8000, 12800, 16000, 32000, 64000, 281251, 562502, 1125004, 1406255, 2250008, 2812510, 4500016, 5625020, 7031275, 9000032, 11250040, 14062550, 18000064, 22500080, 28125100, 35156375, 36000128, 45000160, 56250200, 70312750, 72000256, 90000320, 112500400, 140625500, 144000512, 180000640, 225000800, 281251000, 360001280, 450001600, 562502000, 720002560, 900003200, 1125004000, 1800006400, 2250008000, 3600012800, 4500016000, 9000032000, 18000064000]

約数ペア:

[(1, 18000064000), (2, 9000032000), (4, 4500016000), (5, 3600012800), (8, 2250008000), (10, 1800006400), (16, 1125004000), (20, 900003200), (25, 720002560), (32, 562502000), (40, 450001600), (50, 360001280), (64, 281251000), (80, 225000800), (100, 180000640), (125, 144000512), (128, 140625500), (160, 112500400), (200, 90000320), (250, 72000256), (256, 70312750), (320, 56250200), (400, 45000160), (500, 36000128), (512, 35156375), (640, 28125100), (800, 22500080), (1000, 18000064), (1280, 14062550), (1600, 11250040), (2000, 9000032), (2560, 7031275), (3200, 5625020), (4000, 4500016), (6400, 2812510), (8000, 2250008), (12800, 1406255), (16000, 1125004), (32000, 562502), (64000, 281251)]