51191680

素因数分解:

$2^7\times 5^1\times {\mathrm{79987}}^1$

素因数の和:80006

約数の個数: 32

約数和(自身を含む): 122381640

約数和(自身を除く): 71189960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 79987, 159974, 319948, 399935, 639896, 799870, 1279792, 1599740, 2559584, 3199480, 5119168, 6398960, 10238336, 12797920, 25595840, 51191680]

約数ペア:

[(1, 51191680), (2, 25595840), (4, 12797920), (5, 10238336), (8, 6398960), (10, 5119168), (16, 3199480), (20, 2559584), (32, 1599740), (40, 1279792), (64, 799870), (80, 639896), (128, 399935), (160, 319948), (320, 159974), (640, 79987)]