20420768

素因数分解:

$2^5\times {\mathrm{139}}^1\times {\mathrm{4591}}^1$

素因数の和:4740

約数の個数: 24

約数和(自身を含む): 40501440

約数和(自身を除く): 20080672

約数列:

[1, 2, 4, 8, 16, 32, 139, 278, 556, 1112, 2224, 4448, 4591, 9182, 18364, 36728, 73456, 146912, 638149, 1276298, 2552596, 5105192, 10210384, 20420768]

約数ペア:

[(1, 20420768), (2, 10210384), (4, 5105192), (8, 2552596), (16, 1276298), (32, 638149), (139, 146912), (278, 73456), (556, 36728), (1112, 18364), (2224, 9182), (4448, 4591)]