9900040

素因数分解:

$2^3\times 5^1\times {\mathrm{247501}}^1$

素因数の和:247512

約数の個数: 16

約数和(自身を含む): 22275180

約数和(自身を除く): 12375140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 247501, 495002, 990004, 1237505, 1980008, 2475010, 4950020, 9900040]

約数ペア:

[(1, 9900040), (2, 4950020), (4, 2475010), (5, 1980008), (8, 1237505), (10, 990004), (20, 495002), (40, 247501)]