3981925

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:213

約数の個数: 24

約数和(自身を含む): 5312160

約数和(自身を除く): 1330235

約数列:

[1, 5, 19, 25, 83, 95, 101, 415, 475, 505, 1577, 1919, 2075, 2525, 7885, 8383, 9595, 39425, 41915, 47975, 159277, 209575, 796385, 3981925]

約数ペア:

[(1, 3981925), (5, 796385), (19, 209575), (25, 159277), (83, 47975), (95, 41915), (101, 39425), (415, 9595), (475, 8383), (505, 7885), (1577, 2525), (1919, 2075)]