5128040

素因数分解:

$2^3\times 5^1\times {\mathrm{128201}}^1$

素因数の和:128212

約数の個数: 16

約数和(自身を含む): 11538180

約数和(自身を除く): 6410140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 128201, 256402, 512804, 641005, 1025608, 1282010, 2564020, 5128040]

約数ペア:

[(1, 5128040), (2, 2564020), (4, 1282010), (5, 1025608), (8, 641005), (10, 512804), (20, 256402), (40, 128201)]