209802256

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{690139}}^1$

素因数の和:690166

約数の個数: 20

約数和(自身を含む): 427886800

約数和(自身を除く): 218084544

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 690139, 1380278, 2760556, 5521112, 11042224, 13112641, 26225282, 52450564, 104901128, 209802256]

約数ペア:

[(1, 209802256), (2, 104901128), (4, 52450564), (8, 26225282), (16, 13112641), (19, 11042224), (38, 5521112), (76, 2760556), (152, 1380278), (304, 690139)]