257574815

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{72251}}^1$

素因数の和:72310

約数の個数: 16

約数和(自身を含む): 332937216

約数和(自身を除く): 75362401

約数列:

[1, 5, 23, 31, 115, 155, 713, 3565, 72251, 361255, 1661773, 2239781, 8308865, 11198905, 51514963, 257574815]

約数ペア:

[(1, 257574815), (5, 51514963), (23, 11198905), (31, 8308865), (115, 2239781), (155, 1661773), (713, 361255), (3565, 72251)]