81367775

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{45841}}^1$

素因数の和:45922

約数の個数: 12

約数和(自身を含む): 102319344

約数和(自身を除く): 20951569

約数列:

[1, 5, 25, 71, 355, 1775, 45841, 229205, 1146025, 3254711, 16273555, 81367775]

約数ペア:

[(1, 81367775), (5, 16273555), (25, 3254711), (71, 1146025), (355, 229205), (1775, 45841)]