320176040

素因数分解:

$2^3\times 5^1\times {\mathrm{8004401}}^1$

素因数の和:8004412

約数の個数: 16

約数和(自身を含む): 720396180

約数和(自身を除く): 400220140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 8004401, 16008802, 32017604, 40022005, 64035208, 80044010, 160088020, 320176040]

約数ペア:

[(1, 320176040), (2, 160088020), (4, 80044010), (5, 64035208), (8, 40022005), (10, 32017604), (20, 16008802), (40, 8004401)]