20691860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{147799}}^1$

素因数の和:147815

約数の個数: 24

約数和(自身を含む): 49660800

約数和(自身を除く): 28968940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 147799, 295598, 591196, 738995, 1034593, 1477990, 2069186, 2955980, 4138372, 5172965, 10345930, 20691860]

約数ペア:

[(1, 20691860), (2, 10345930), (4, 5172965), (5, 4138372), (7, 2955980), (10, 2069186), (14, 1477990), (20, 1034593), (28, 738995), (35, 591196), (70, 295598), (140, 147799)]