2019955565

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{463}}^1\times {\mathrm{643}}^1$

素因数の和:1193

約数の個数: 32

約数和(自身を含む): 2581770240

約数和(自身を除く): 561814675

約数列:

[1, 5, 23, 59, 115, 295, 463, 643, 1357, 2315, 3215, 6785, 10649, 14789, 27317, 37937, 53245, 73945, 136585, 189685, 297709, 628291, 872551, 1488545, 3141455, 4362755, 6847307, 17564831, 34236535, 87824155, 403991113, 2019955565]

約数ペア:

[(1, 2019955565), (5, 403991113), (23, 87824155), (59, 34236535), (115, 17564831), (295, 6847307), (463, 4362755), (643, 3141455), (1357, 1488545), (2315, 872551), (3215, 628291), (6785, 297709), (10649, 189685), (14789, 136585), (27317, 73945), (37937, 53245)]