198902488

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{2687}}^1$

素因数の和:3199

約数の個数: 32

約数和(自身を含む): 393523200

約数和(自身を除く): 194620712

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 487, 974, 1948, 2687, 3896, 5374, 9253, 10748, 18506, 21496, 37012, 51053, 74024, 102106, 204212, 408424, 1308569, 2617138, 5234276, 10468552, 24862811, 49725622, 99451244, 198902488]

約数ペア:

[(1, 198902488), (2, 99451244), (4, 49725622), (8, 24862811), (19, 10468552), (38, 5234276), (76, 2617138), (152, 1308569), (487, 408424), (974, 204212), (1948, 102106), (2687, 74024), (3896, 51053), (5374, 37012), (9253, 21496), (10748, 18506)]