20419456

素因数分解:

$2^7\times {\mathrm{67}}^1\times {\mathrm{2381}}^1$

素因数の和:2462

約数の個数: 32

約数和(自身を含む): 41303880

約数和(自身を除く): 20884424

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 128, 134, 268, 536, 1072, 2144, 2381, 4288, 4762, 8576, 9524, 19048, 38096, 76192, 152384, 159527, 304768, 319054, 638108, 1276216, 2552432, 5104864, 10209728, 20419456]

約数ペア:

[(1, 20419456), (2, 10209728), (4, 5104864), (8, 2552432), (16, 1276216), (32, 638108), (64, 319054), (67, 304768), (128, 159527), (134, 152384), (268, 76192), (536, 38096), (1072, 19048), (2144, 9524), (2381, 8576), (4288, 4762)]