28665275

素因数分解:

$5^2\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:335

約数の個数: 24

約数和(自身を含む): 36612240

約数和(自身を除く): 7946965

約数列:

[1, 5, 25, 73, 113, 139, 365, 565, 695, 1825, 2825, 3475, 8249, 10147, 15707, 41245, 50735, 78535, 206225, 253675, 392675, 1146611, 5733055, 28665275]

約数ペア:

[(1, 28665275), (5, 5733055), (25, 1146611), (73, 392675), (113, 253675), (139, 206225), (365, 78535), (565, 50735), (695, 41245), (1825, 15707), (2825, 10147), (3475, 8249)]