138020720

素因数分解:

$2^4\times 5^1\times {\mathrm{1725259}}^1$

素因数の和:1725272

約数の個数: 20

約数和(自身を含む): 320898360

約数和(自身を除く): 182877640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1725259, 3450518, 6901036, 8626295, 13802072, 17252590, 27604144, 34505180, 69010360, 138020720]

約数ペア:

[(1, 138020720), (2, 69010360), (4, 34505180), (5, 27604144), (8, 17252590), (10, 13802072), (16, 8626295), (20, 6901036), (40, 3450518), (80, 1725259)]