71622640

素因数分解:

$2^4\times 5^1\times {\mathrm{895283}}^1$

素因数の和:895296

約数の個数: 20

約数和(自身を含む): 166522824

約数和(自身を除く): 94900184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 895283, 1790566, 3581132, 4476415, 7162264, 8952830, 14324528, 17905660, 35811320, 71622640]

約数ペア:

[(1, 71622640), (2, 35811320), (4, 17905660), (5, 14324528), (8, 8952830), (10, 7162264), (16, 4476415), (20, 3581132), (40, 1790566), (80, 895283)]