160000

素因数分解:

$2^8\times 5^4$

素因数の和:36

約数の個数: 45

約数和(自身を含む): 399091

約数和(自身を除く): 239091

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, 625, 640, 800, 1000, 1250, 1280, 1600, 2000, 2500, 3200, 4000, 5000, 6400, 8000, 10000, 16000, 20000, 32000, 40000, 80000, 160000]

約数ペア:

[(1, 160000), (2, 80000), (4, 40000), (5, 32000), (8, 20000), (10, 16000), (16, 10000), (20, 8000), (25, 6400), (32, 5000), (40, 4000), (50, 3200), (64, 2500), (80, 2000), (100, 1600), (125, 1280), (128, 1250), (160, 1000), (200, 800), (250, 640), (256, 625), (320, 500)]