20138872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4723}}^1$

素因数の和:4783

約数の個数: 32

約数和(自身を含む): 41665680

約数和(自身を除く): 21526808

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 328, 533, 1066, 2132, 4264, 4723, 9446, 18892, 37784, 61399, 122798, 193643, 245596, 387286, 491192, 774572, 1549144, 2517359, 5034718, 10069436, 20138872]

約数ペア:

[(1, 20138872), (2, 10069436), (4, 5034718), (8, 2517359), (13, 1549144), (26, 774572), (41, 491192), (52, 387286), (82, 245596), (104, 193643), (164, 122798), (328, 61399), (533, 37784), (1066, 18892), (2132, 9446), (4264, 4723)]