81492025

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1481}}^1$

素因数の和:1593

約数の個数: 24

約数和(自身を含む): 105850368

約数和(自身を除く): 24358343

約数列:

[1, 5, 25, 31, 71, 155, 355, 775, 1481, 1775, 2201, 7405, 11005, 37025, 45911, 55025, 105151, 229555, 525755, 1147775, 2628775, 3259681, 16298405, 81492025]

約数ペア:

[(1, 81492025), (5, 16298405), (25, 3259681), (31, 2628775), (71, 1147775), (155, 525755), (355, 229555), (775, 105151), (1481, 55025), (1775, 45911), (2201, 37025), (7405, 11005)]