20225495

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 27086400

約数和(自身を除く): 6860905

約数列:

[1, 5, 17, 37, 59, 85, 109, 185, 295, 545, 629, 1003, 1853, 2183, 3145, 4033, 5015, 6431, 9265, 10915, 20165, 32155, 37111, 68561, 109327, 185555, 237947, 342805, 546635, 1189735, 4045099, 20225495]

約数ペア:

[(1, 20225495), (5, 4045099), (17, 1189735), (37, 546635), (59, 342805), (85, 237947), (109, 185555), (185, 109327), (295, 68561), (545, 37111), (629, 32155), (1003, 20165), (1853, 10915), (2183, 9265), (3145, 6431), (4033, 5015)]