20056456

素因数分解:

$2^3\times 7^1\times {\mathrm{557}}^1\times {\mathrm{643}}^1$

素因数の和:1213

約数の個数: 32

約数和(自身を含む): 43122240

約数和(自身を除く): 23065784

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 557, 643, 1114, 1286, 2228, 2572, 3899, 4456, 4501, 5144, 7798, 9002, 15596, 18004, 31192, 36008, 358151, 716302, 1432604, 2507057, 2865208, 5014114, 10028228, 20056456]

約数ペア:

[(1, 20056456), (2, 10028228), (4, 5014114), (7, 2865208), (8, 2507057), (14, 1432604), (28, 716302), (56, 358151), (557, 36008), (643, 31192), (1114, 18004), (1286, 15596), (2228, 9002), (2572, 7798), (3899, 5144), (4456, 4501)]