12980770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{593}}^1$

素因数の和:810

約数の個数: 32

約数和(自身を含む): 25660800

約数和(自身を除く): 12680030

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 199, 398, 593, 995, 1186, 1990, 2189, 2965, 4378, 5930, 6523, 10945, 13046, 21890, 32615, 65230, 118007, 236014, 590035, 1180070, 1298077, 2596154, 6490385, 12980770]

約数ペア:

[(1, 12980770), (2, 6490385), (5, 2596154), (10, 1298077), (11, 1180070), (22, 590035), (55, 236014), (110, 118007), (199, 65230), (398, 32615), (593, 21890), (995, 13046), (1186, 10945), (1990, 6523), (2189, 5930), (2965, 4378)]