251559976

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{5261}}^1$

素因数の和:5449

約数の個数: 32

約数和(自身を含む): 486208800

約数和(自身を除く): 234648824

約数列:

[1, 2, 4, 8, 43, 86, 139, 172, 278, 344, 556, 1112, 5261, 5977, 10522, 11954, 21044, 23908, 42088, 47816, 226223, 452446, 731279, 904892, 1462558, 1809784, 2925116, 5850232, 31444997, 62889994, 125779988, 251559976]

約数ペア:

[(1, 251559976), (2, 125779988), (4, 62889994), (8, 31444997), (43, 5850232), (86, 2925116), (139, 1809784), (172, 1462558), (278, 904892), (344, 731279), (556, 452446), (1112, 226223), (5261, 47816), (5977, 42088), (10522, 23908), (11954, 21044)]