20980009105

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{475037}}^1$

素因数の和:475137

約数の個数: 24

約数和(自身を含む): 28051943976

約数和(自身を除く): 7071934871

約数列:

[1, 5, 11, 55, 73, 121, 365, 605, 803, 4015, 8833, 44165, 475037, 2375185, 5225407, 26127035, 34677701, 57479477, 173388505, 287397385, 381454711, 1907273555, 4196001821, 20980009105]

約数ペア:

[(1, 20980009105), (5, 4196001821), (11, 1907273555), (55, 381454711), (73, 287397385), (121, 173388505), (365, 57479477), (605, 34677701), (803, 26127035), (4015, 5225407), (8833, 2375185), (44165, 475037)]