157440980080

素因数分解:

$2^4\times 5^1\times {\mathrm{1968012251}}^1$

素因数の和:1968012264

約数の個数: 20

約数和(自身を含む): 366050278872

約数和(自身を除く): 208609298792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1968012251, 3936024502, 7872049004, 9840061255, 15744098008, 19680122510, 31488196016, 39360245020, 78720490040, 157440980080]

約数ペア:

[(1, 157440980080), (2, 78720490040), (4, 39360245020), (5, 31488196016), (8, 19680122510), (10, 15744098008), (16, 9840061255), (20, 7872049004), (40, 3936024502), (80, 1968012251)]