420405904

素因数分解:

$2^4\times {\mathrm{1009}}^1\times {\mathrm{26041}}^1$

素因数の和:27058

約数の個数: 20

約数和(自身を含む): 815375020

約数和(自身を除く): 394969116

約数列:

[1, 2, 4, 8, 16, 1009, 2018, 4036, 8072, 16144, 26041, 52082, 104164, 208328, 416656, 26275369, 52550738, 105101476, 210202952, 420405904]

約数ペア:

[(1, 420405904), (2, 210202952), (4, 105101476), (8, 52550738), (16, 26275369), (1009, 416656), (2018, 208328), (4036, 104164), (8072, 52082), (16144, 26041)]