20138128

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{6389}}^1$

素因数の和:6594

約数の個数: 20

約数和(自身を含む): 39221820

約数和(自身を除く): 19083692

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 6389, 12778, 25556, 51112, 102224, 1258633, 2517266, 5034532, 10069064, 20138128]

約数ペア:

[(1, 20138128), (2, 10069064), (4, 5034532), (8, 2517266), (16, 1258633), (197, 102224), (394, 51112), (788, 25556), (1576, 12778), (3152, 6389)]