20805776

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{15667}}^1$

素因数の和:15758

約数の個数: 20

約数和(自身を含む): 40799472

約数和(自身を除く): 19993696

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 15667, 31334, 62668, 125336, 250672, 1300361, 2600722, 5201444, 10402888, 20805776]

約数ペア:

[(1, 20805776), (2, 10402888), (4, 5201444), (8, 2600722), (16, 1300361), (83, 250672), (166, 125336), (332, 62668), (664, 31334), (1328, 15667)]