128176040

素因数分解:

$2^3\times 5^1\times {\mathrm{3204401}}^1$

素因数の和:3204412

約数の個数: 16

約数和(自身を含む): 288396180

約数和(自身を除く): 160220140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3204401, 6408802, 12817604, 16022005, 25635208, 32044010, 64088020, 128176040]

約数ペア:

[(1, 128176040), (2, 64088020), (4, 32044010), (5, 25635208), (8, 16022005), (10, 12817604), (20, 6408802), (40, 3204401)]