2164280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{887}}^1$

素因数の和:959

約数の個数: 32

約数和(自身を含む): 4955040

約数和(自身を除く): 2790760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 887, 1220, 1774, 2440, 3548, 4435, 7096, 8870, 17740, 35480, 54107, 108214, 216428, 270535, 432856, 541070, 1082140, 2164280]

約数ペア:

[(1, 2164280), (2, 1082140), (4, 541070), (5, 432856), (8, 270535), (10, 216428), (20, 108214), (40, 54107), (61, 35480), (122, 17740), (244, 8870), (305, 7096), (488, 4435), (610, 3548), (887, 2440), (1220, 1774)]