278840638

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{2311}}^1$

素因数の和:2440

約数の個数: 32

約数和(自身を含む): 454113792

約数和(自身を除く): 175273154

約数列:

[1, 2, 23, 43, 46, 61, 86, 122, 989, 1403, 1978, 2311, 2623, 2806, 4622, 5246, 53153, 60329, 99373, 106306, 120658, 140971, 198746, 281942, 2285579, 3242333, 4571158, 6061753, 6484666, 12123506, 139420319, 278840638]

約数ペア:

[(1, 278840638), (2, 139420319), (23, 12123506), (43, 6484666), (46, 6061753), (61, 4571158), (86, 3242333), (122, 2285579), (989, 281942), (1403, 198746), (1978, 140971), (2311, 120658), (2623, 106306), (2806, 99373), (4622, 60329), (5246, 53153)]