66728725

素因数分解:

$5^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{3931}}^1$

素因数の和:4045

約数の個数: 24

約数和(自身を含む): 95563328

約数和(自身を除く): 28834603

約数列:

[1, 5, 7, 25, 35, 97, 175, 485, 679, 2425, 3395, 3931, 16975, 19655, 27517, 98275, 137585, 381307, 687925, 1906535, 2669149, 9532675, 13345745, 66728725]

約数ペア:

[(1, 66728725), (5, 13345745), (7, 9532675), (25, 2669149), (35, 1906535), (97, 687925), (175, 381307), (485, 137585), (679, 98275), (2425, 27517), (3395, 19655), (3931, 16975)]