20506478

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:280

約数の個数: 32

約数和(自身を含む): 33530112

約数和(自身を除く): 13023634

約数列:

[1, 2, 23, 41, 46, 82, 83, 131, 166, 262, 943, 1886, 1909, 3013, 3403, 3818, 5371, 6026, 6806, 10742, 10873, 21746, 78269, 123533, 156538, 247066, 250079, 445793, 500158, 891586, 10253239, 20506478]

約数ペア:

[(1, 20506478), (2, 10253239), (23, 891586), (41, 500158), (46, 445793), (82, 250079), (83, 247066), (131, 156538), (166, 123533), (262, 78269), (943, 21746), (1886, 10873), (1909, 10742), (3013, 6806), (3403, 6026), (3818, 5371)]