209541128

素因数分解:

$2^3\times {\mathrm{1279}}^1\times {\mathrm{20479}}^1$

素因数の和:21764

約数の個数: 16

約数和(自身を含む): 393216000

約数和(自身を除く): 183674872

約数列:

[1, 2, 4, 8, 1279, 2558, 5116, 10232, 20479, 40958, 81916, 163832, 26192641, 52385282, 104770564, 209541128]

約数ペア:

[(1, 209541128), (2, 104770564), (4, 52385282), (8, 26192641), (1279, 163832), (2558, 81916), (5116, 40958), (10232, 20479)]