129587728

素因数分解:

$2^4\times {\mathrm{661}}^1\times {\mathrm{12253}}^1$

素因数の和:12922

約数の個数: 20

約数和(自身を含む): 251476588

約数和(自身を除く): 121888860

約数列:

[1, 2, 4, 8, 16, 661, 1322, 2644, 5288, 10576, 12253, 24506, 49012, 98024, 196048, 8099233, 16198466, 32396932, 64793864, 129587728]

約数ペア:

[(1, 129587728), (2, 64793864), (4, 32396932), (8, 16198466), (16, 8099233), (661, 196048), (1322, 98024), (2644, 49012), (5288, 24506), (10576, 12253)]