28667015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{25943}}^1$

素因数の和:25978

約数の個数: 16

約数和(自身を含む): 39227328

約数和(自身を除く): 10560313

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 25943, 129715, 337259, 441031, 1686295, 2205155, 5733403, 28667015]

約数ペア:

[(1, 28667015), (5, 5733403), (13, 2205155), (17, 1686295), (65, 441031), (85, 337259), (221, 129715), (1105, 25943)]