157440280

素因数分解:

$2^3\times 5^1\times {\mathrm{3936007}}^1$

素因数の和:3936018

約数の個数: 16

約数和(自身を含む): 354240720

約数和(自身を除く): 196800440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3936007, 7872014, 15744028, 19680035, 31488056, 39360070, 78720140, 157440280]

約数ペア:

[(1, 157440280), (2, 78720140), (4, 39360070), (5, 31488056), (8, 19680035), (10, 15744028), (20, 7872014), (40, 3936007)]