7840025

素因数分解:

$5^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:221

約数の個数: 24

約数和(自身を含む): 10171224

約数和(自身を除く): 2331199

約数列:

[1, 5, 25, 53, 61, 97, 265, 305, 485, 1325, 1525, 2425, 3233, 5141, 5917, 16165, 25705, 29585, 80825, 128525, 147925, 313601, 1568005, 7840025]

約数ペア:

[(1, 7840025), (5, 1568005), (25, 313601), (53, 147925), (61, 128525), (97, 80825), (265, 29585), (305, 25705), (485, 16165), (1325, 5917), (1525, 5141), (2425, 3233)]