157416620

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{17929}}^1$

素因数の和:18377

約数の個数: 24

約数和(自身を含む): 331346400

約数和(自身を除く): 173929780

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8780, 17929, 35858, 71716, 89645, 179290, 358580, 7870831, 15741662, 31483324, 39354155, 78708310, 157416620]

約数ペア:

[(1, 157416620), (2, 78708310), (4, 39354155), (5, 31483324), (10, 15741662), (20, 7870831), (439, 358580), (878, 179290), (1756, 89645), (2195, 71716), (4390, 35858), (8780, 17929)]