40928000

素因数分解:

$2^8\times 5^3\times {\mathrm{1279}}^1$

素因数の和:1310

約数の個数: 72

約数和(自身を含む): 102036480

約数和(自身を除く): 61108480

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, 640, 800, 1000, 1279, 1280, 1600, 2000, 2558, 3200, 4000, 5116, 6395, 6400, 8000, 10232, 12790, 16000, 20464, 25580, 31975, 32000, 40928, 51160, 63950, 81856, 102320, 127900, 159875, 163712, 204640, 255800, 319750, 327424, 409280, 511600, 639500, 818560, 1023200, 1279000, 1637120, 2046400, 2558000, 4092800, 5116000, 8185600, 10232000, 20464000, 40928000]

約数ペア:

[(1, 40928000), (2, 20464000), (4, 10232000), (5, 8185600), (8, 5116000), (10, 4092800), (16, 2558000), (20, 2046400), (25, 1637120), (32, 1279000), (40, 1023200), (50, 818560), (64, 639500), (80, 511600), (100, 409280), (125, 327424), (128, 319750), (160, 255800), (200, 204640), (250, 163712), (256, 159875), (320, 127900), (400, 102320), (500, 81856), (640, 63950), (800, 51160), (1000, 40928), (1279, 32000), (1280, 31975), (1600, 25580), (2000, 20464), (2558, 16000), (3200, 12790), (4000, 10232), (5116, 8000), (6395, 6400)]