31424000

素因数分解:

$2^9\times 5^3\times {\mathrm{491}}^1$

素因数の和:524

約数の個数: 80

約数和(自身を含む): 78517296

約数和(自身を除く): 47093296

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, 491, 500, 512, 640, 800, 982, 1000, 1280, 1600, 1964, 2000, 2455, 2560, 3200, 3928, 4000, 4910, 6400, 7856, 8000, 9820, 12275, 12800, 15712, 16000, 19640, 24550, 31424, 32000, 39280, 49100, 61375, 62848, 64000, 78560, 98200, 122750, 125696, 157120, 196400, 245500, 251392, 314240, 392800, 491000, 628480, 785600, 982000, 1256960, 1571200, 1964000, 3142400, 3928000, 6284800, 7856000, 15712000, 31424000]

約数ペア:

[(1, 31424000), (2, 15712000), (4, 7856000), (5, 6284800), (8, 3928000), (10, 3142400), (16, 1964000), (20, 1571200), (25, 1256960), (32, 982000), (40, 785600), (50, 628480), (64, 491000), (80, 392800), (100, 314240), (125, 251392), (128, 245500), (160, 196400), (200, 157120), (250, 125696), (256, 122750), (320, 98200), (400, 78560), (491, 64000), (500, 62848), (512, 61375), (640, 49100), (800, 39280), (982, 32000), (1000, 31424), (1280, 24550), (1600, 19640), (1964, 16000), (2000, 15712), (2455, 12800), (2560, 12275), (3200, 9820), (3928, 8000), (4000, 7856), (4910, 6400)]