28781182975

素因数分解:

$5^2\times {\mathrm{54001}}^1\times {\mathrm{21319}}^1$

素因数の和:75330

約数の個数: 12

約数和(自身を含む): 35691001840

約数和(自身を除く): 6909818865

約数列:

[1, 5, 25, 21319, 54001, 106595, 270005, 532975, 1350025, 1151247319, 5756236595, 28781182975]

約数ペア:

[(1, 28781182975), (5, 5756236595), (25, 1151247319), (21319, 1350025), (54001, 532975), (106595, 270005)]