81988148

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{2777}}^1$

素因数の和:2864

約数の個数: 36

約数和(自身を含む): 160351716

約数和(自身を除く): 78363568

約数列:

[1, 2, 4, 11, 22, 44, 61, 121, 122, 242, 244, 484, 671, 1342, 2684, 2777, 5554, 7381, 11108, 14762, 29524, 30547, 61094, 122188, 169397, 336017, 338794, 672034, 677588, 1344068, 1863367, 3726734, 7453468, 20497037, 40994074, 81988148]

約数ペア:

[(1, 81988148), (2, 40994074), (4, 20497037), (11, 7453468), (22, 3726734), (44, 1863367), (61, 1344068), (121, 677588), (122, 672034), (242, 338794), (244, 336017), (484, 169397), (671, 122188), (1342, 61094), (2684, 30547), (2777, 29524), (5554, 14762), (7381, 11108)]