261229748

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{563}}^1\times {\mathrm{8923}}^1$

素因数の和:9503

約数の個数: 24

約数和(自身を含む): 493247328

約数和(自身を除く): 232017580

約数列:

[1, 2, 4, 13, 26, 52, 563, 1126, 2252, 7319, 8923, 14638, 17846, 29276, 35692, 115999, 231998, 463996, 5023649, 10047298, 20094596, 65307437, 130614874, 261229748]

約数ペア:

[(1, 261229748), (2, 130614874), (4, 65307437), (13, 20094596), (26, 10047298), (52, 5023649), (563, 463996), (1126, 231998), (2252, 115999), (7319, 35692), (8923, 29276), (14638, 17846)]