20975440

素因数分解:

$2^4\times 5^1\times {\mathrm{262193}}^1$

素因数の和:262206

約数の個数: 20

約数和(自身を含む): 48768084

約数和(自身を除く): 27792644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 262193, 524386, 1048772, 1310965, 2097544, 2621930, 4195088, 5243860, 10487720, 20975440]

約数ペア:

[(1, 20975440), (2, 10487720), (4, 5243860), (5, 4195088), (8, 2621930), (10, 2097544), (16, 1310965), (20, 1048772), (40, 524386), (80, 262193)]