66400975

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{37409}}^1$

素因数の和:37490

約数の個数: 12

約数和(自身を含む): 83499120

約数和(自身を除く): 17098145

約数列:

[1, 5, 25, 71, 355, 1775, 37409, 187045, 935225, 2656039, 13280195, 66400975]

約数ペア:

[(1, 66400975), (5, 13280195), (25, 2656039), (71, 935225), (355, 187045), (1775, 37409)]