258910255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{38557}}^1$

素因数の和:38658

約数の個数: 16

約数和(自身を含む): 333141120

約数和(自身を除く): 74230865

約数列:

[1, 5, 17, 79, 85, 395, 1343, 6715, 38557, 192785, 655469, 3046003, 3277345, 15230015, 51782051, 258910255]

約数ペア:

[(1, 258910255), (5, 51782051), (17, 15230015), (79, 3277345), (85, 3046003), (395, 655469), (1343, 192785), (6715, 38557)]