81842975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{4007}}^1$

素因数の和:4079

約数の個数: 24

約数和(自身を含む): 109338240

約数和(自身を除く): 27495265

約数列:

[1, 5, 19, 25, 43, 95, 215, 475, 817, 1075, 4007, 4085, 20035, 20425, 76133, 100175, 172301, 380665, 861505, 1903325, 3273719, 4307525, 16368595, 81842975]

約数ペア:

[(1, 81842975), (5, 16368595), (19, 4307525), (25, 3273719), (43, 1903325), (95, 861505), (215, 380665), (475, 172301), (817, 100175), (1075, 76133), (4007, 20425), (4085, 20035)]