78572080

素因数分解:

$2^4\times 5^1\times {\mathrm{982151}}^1$

素因数の和:982164

約数の個数: 20

約数和(自身を含む): 182680272

約数和(自身を除く): 104108192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 982151, 1964302, 3928604, 4910755, 7857208, 9821510, 15714416, 19643020, 39286040, 78572080]

約数ペア:

[(1, 78572080), (2, 39286040), (4, 19643020), (5, 15714416), (8, 9821510), (10, 7857208), (16, 4910755), (20, 3928604), (40, 1964302), (80, 982151)]