2561640065

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{204359}}^1$

素因数の和:204496

約数の個数: 16

約数和(自身を含む): 3237062400

約数和(自身を除く): 675422335

約数列:

[1, 5, 23, 109, 115, 545, 2507, 12535, 204359, 1021795, 4700257, 22275131, 23501285, 111375655, 512328013, 2561640065]

約数ペア:

[(1, 2561640065), (5, 512328013), (23, 111375655), (109, 23501285), (115, 22275131), (545, 4700257), (2507, 1021795), (12535, 204359)]