128581263

素因数分解:

$3^5\times {\mathrm{199}}^1\times {\mathrm{2659}}^1$

素因数の和:2873

約数の個数: 24

約数和(自身を含む): 193648000

約数和(自身を除く): 65066737

約数列:

[1, 3, 9, 27, 81, 199, 243, 597, 1791, 2659, 5373, 7977, 16119, 23931, 48357, 71793, 215379, 529141, 646137, 1587423, 4762269, 14286807, 42860421, 128581263]

約数ペア:

[(1, 128581263), (3, 42860421), (9, 14286807), (27, 4762269), (81, 1587423), (199, 646137), (243, 529141), (597, 215379), (1791, 71793), (2659, 48357), (5373, 23931), (7977, 16119)]