20123687988

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{86491}}^1$

素因数の和:86805

約数の個数: 72

約数和(自身を含む): 53269384896

約数和(自身を除く): 33145696908

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 281, 414, 562, 828, 843, 1124, 1686, 2529, 3372, 5058, 6463, 10116, 12926, 19389, 25852, 38778, 58167, 77556, 86491, 116334, 172982, 232668, 259473, 345964, 518946, 778419, 1037892, 1556838, 1989293, 3113676, 3978586, 5967879, 7957172, 11935758, 17903637, 23871516, 24303971, 35807274, 48607942, 71614548, 72911913, 97215884, 145823826, 218735739, 291647652, 437471478, 558991333, 874942956, 1117982666, 1676973999, 2235965332, 3353947998, 5030921997, 6707895996, 10061843994, 20123687988]

約数ペア:

[(1, 20123687988), (2, 10061843994), (3, 6707895996), (4, 5030921997), (6, 3353947998), (9, 2235965332), (12, 1676973999), (18, 1117982666), (23, 874942956), (36, 558991333), (46, 437471478), (69, 291647652), (92, 218735739), (138, 145823826), (207, 97215884), (276, 72911913), (281, 71614548), (414, 48607942), (562, 35807274), (828, 24303971), (843, 23871516), (1124, 17903637), (1686, 11935758), (2529, 7957172), (3372, 5967879), (5058, 3978586), (6463, 3113676), (10116, 1989293), (12926, 1556838), (19389, 1037892), (25852, 778419), (38778, 518946), (58167, 345964), (77556, 259473), (86491, 232668), (116334, 172982)]