256694672

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1234109}}^1$

素因数の和:1234130

約数の個数: 20

約数和(自身を含む): 535603740

約数和(自身を除く): 278909068

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1234109, 2468218, 4936436, 9872872, 16043417, 19745744, 32086834, 64173668, 128347336, 256694672]

約数ペア:

[(1, 256694672), (2, 128347336), (4, 64173668), (8, 32086834), (13, 19745744), (16, 16043417), (26, 9872872), (52, 4936436), (104, 2468218), (208, 1234109)]