28050815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13921}}^1$

素因数の和:13970

約数の個数: 16

約数和(自身を含む): 37422336

約数和(自身を除く): 9371521

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 13921, 69605, 180973, 431551, 904865, 2157755, 5610163, 28050815]

約数ペア:

[(1, 28050815), (5, 5610163), (13, 2157755), (31, 904865), (65, 431551), (155, 180973), (403, 69605), (2015, 13921)]