201257975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{661}}^1$

素因数の和:1331

約数の個数: 24

約数和(自身を含む): 263502480

約数和(自身を除く): 62244505

約数列:

[1, 5, 19, 25, 95, 475, 641, 661, 3205, 3305, 12179, 12559, 16025, 16525, 60895, 62795, 304475, 313975, 423701, 2118505, 8050319, 10592525, 40251595, 201257975]

約数ペア:

[(1, 201257975), (5, 40251595), (19, 10592525), (25, 8050319), (95, 2118505), (475, 423701), (641, 313975), (661, 304475), (3205, 62795), (3305, 60895), (12179, 16525), (12559, 16025)]