80872640

素因数分解:

$2^6\times 5^1\times {\mathrm{252727}}^1$

素因数の和:252744

約数の個数: 28

約数和(自身を含む): 192578736

約数和(自身を除く): 111706096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 252727, 505454, 1010908, 1263635, 2021816, 2527270, 4043632, 5054540, 8087264, 10109080, 16174528, 20218160, 40436320, 80872640]

約数ペア:

[(1, 80872640), (2, 40436320), (4, 20218160), (5, 16174528), (8, 10109080), (10, 8087264), (16, 5054540), (20, 4043632), (32, 2527270), (40, 2021816), (64, 1263635), (80, 1010908), (160, 505454), (320, 252727)]