128980324

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{21089}}^1$

素因数の和:21243

約数の個数: 24

約数和(自身を含む): 248018400

約数和(自身を除く): 119038076

約数列:

[1, 2, 4, 11, 22, 44, 139, 278, 556, 1529, 3058, 6116, 21089, 42178, 84356, 231979, 463958, 927916, 2931371, 5862742, 11725484, 32245081, 64490162, 128980324]

約数ペア:

[(1, 128980324), (2, 64490162), (4, 32245081), (11, 11725484), (22, 5862742), (44, 2931371), (139, 927916), (278, 463958), (556, 231979), (1529, 84356), (3058, 42178), (6116, 21089)]