9780025

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 12698840

約数和(自身を除く): 2918815

約数列:

[1, 5, 25, 37, 97, 109, 185, 485, 545, 925, 2425, 2725, 3589, 4033, 10573, 17945, 20165, 52865, 89725, 100825, 264325, 391201, 1956005, 9780025]

約数ペア:

[(1, 9780025), (5, 1956005), (25, 391201), (37, 264325), (97, 100825), (109, 89725), (185, 52865), (485, 20165), (545, 17945), (925, 10573), (2425, 4033), (2725, 3589)]