16000

素因数分解:

$2^7\times 5^3$

素因数の和:29

約数の個数: 32

約数和(自身を含む): 39780

約数和(自身を除く): 23780

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, 640, 800, 1000, 1600, 2000, 3200, 4000, 8000, 16000]

約数ペア:

[(1, 16000), (2, 8000), (4, 4000), (5, 3200), (8, 2000), (10, 1600), (16, 1000), (20, 800), (25, 640), (32, 500), (40, 400), (50, 320), (64, 250), (80, 200), (100, 160), (125, 128)]