56495560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128399}}^1$

素因数の和:128421

約数の個数: 32

約数和(自身を含む): 138672000

約数和(自身を除く): 82176440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 128399, 256798, 513596, 641995, 1027192, 1283990, 1412389, 2567980, 2824778, 5135960, 5649556, 7061945, 11299112, 14123890, 28247780, 56495560]

約数ペア:

[(1, 56495560), (2, 28247780), (4, 14123890), (5, 11299112), (8, 7061945), (10, 5649556), (11, 5135960), (20, 2824778), (22, 2567980), (40, 1412389), (44, 1283990), (55, 1027192), (88, 641995), (110, 513596), (220, 256798), (440, 128399)]