28984975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:607

約数の個数: 24

約数和(自身を含む): 38192000

約数和(自身を除く): 9207025

約数列:

[1, 5, 19, 25, 95, 139, 439, 475, 695, 2195, 2641, 3475, 8341, 10975, 13205, 41705, 61021, 66025, 208525, 305105, 1159399, 1525525, 5796995, 28984975]

約数ペア:

[(1, 28984975), (5, 5796995), (19, 1525525), (25, 1159399), (95, 305105), (139, 208525), (439, 66025), (475, 61021), (695, 41705), (2195, 13205), (2641, 10975), (3475, 8341)]