28120051337

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1\times {\mathrm{349}}^1\times {\mathrm{457}}^1$

素因数の和:1185

約数の個数: 32

約数和(自身を含む): 32778144000

約数和(自身を除く): 4658092663

約数列:

[1, 7, 89, 283, 349, 457, 623, 1981, 2443, 3199, 25187, 31061, 40673, 98767, 129331, 159493, 176309, 217427, 284711, 691369, 905317, 1116451, 8790263, 11510459, 14194877, 45136519, 61531841, 80573213, 99364139, 315955633, 4017150191, 28120051337]

約数ペア:

[(1, 28120051337), (7, 4017150191), (89, 315955633), (283, 99364139), (349, 80573213), (457, 61531841), (623, 45136519), (1981, 14194877), (2443, 11510459), (3199, 8790263), (25187, 1116451), (31061, 905317), (40673, 691369), (98767, 284711), (129331, 217427), (159493, 176309)]