996812120

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{126499}}^1$

素因数の和:126707

約数の個数: 32

約数和(自身を含む): 2254230000

約数和(自身を除く): 1257417880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 126499, 252998, 505996, 632495, 1011992, 1264990, 2529980, 5059960, 24920303, 49840606, 99681212, 124601515, 199362424, 249203030, 498406060, 996812120]

約数ペア:

[(1, 996812120), (2, 498406060), (4, 249203030), (5, 199362424), (8, 124601515), (10, 99681212), (20, 49840606), (40, 24920303), (197, 5059960), (394, 2529980), (788, 1264990), (985, 1011992), (1576, 632495), (1970, 505996), (3940, 252998), (7880, 126499)]