20252745

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4129}}^1$

素因数の和:4249

約数の個数: 24

約数和(自身を含む): 35435400

約数和(自身を除く): 15182655

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4129, 4905, 12387, 20645, 37161, 61935, 185805, 450061, 1350183, 2250305, 4050549, 6750915, 20252745]

約数ペア:

[(1, 20252745), (3, 6750915), (5, 4050549), (9, 2250305), (15, 1350183), (45, 450061), (109, 185805), (327, 61935), (545, 37161), (981, 20645), (1635, 12387), (4129, 4905)]