256735754

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{18149}}^1$

素因数の和:18805

約数の個数: 16

約数和(自身を含む): 420789600

約数和(自身を除く): 164053846

約数列:

[1, 2, 11, 22, 643, 1286, 7073, 14146, 18149, 36298, 199639, 399278, 11669807, 23339614, 128367877, 256735754]

約数ペア:

[(1, 256735754), (2, 128367877), (11, 23339614), (22, 11669807), (643, 399278), (1286, 199639), (7073, 36298), (14146, 18149)]