64000

素因数分解:

$2^9\times 5^3$

素因数の和:33

約数の個数: 40

約数和(自身を含む): 159588

約数和(自身を除く): 95588

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]

約数ペア:

[(1, 64000), (2, 32000), (4, 16000), (5, 12800), (8, 8000), (10, 6400), (16, 4000), (20, 3200), (25, 2560), (32, 2000), (40, 1600), (50, 1280), (64, 1000), (80, 800), (100, 640), (125, 512), (128, 500), (160, 400), (200, 320), (250, 256)]