20700040

素因数分解:

$2^3\times 5^1\times {\mathrm{517501}}^1$

素因数の和:517512

約数の個数: 16

約数和(自身を含む): 46575180

約数和(自身を除く): 25875140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 517501, 1035002, 2070004, 2587505, 4140008, 5175010, 10350020, 20700040]

約数ペア:

[(1, 20700040), (2, 10350020), (4, 5175010), (5, 4140008), (8, 2587505), (10, 2070004), (20, 1035002), (40, 517501)]