28750015

素因数分解:

$5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2729}}^1$

素因数の和:2791

約数の個数: 24

約数和(自身を含む): 41081040

約数和(自身を除く): 12331025

約数列:

[1, 5, 7, 35, 43, 49, 215, 245, 301, 1505, 2107, 2729, 10535, 13645, 19103, 95515, 117347, 133721, 586735, 668605, 821429, 4107145, 5750003, 28750015]

約数ペア:

[(1, 28750015), (5, 5750003), (7, 4107145), (35, 821429), (43, 668605), (49, 586735), (215, 133721), (245, 117347), (301, 95515), (1505, 19103), (2107, 13645), (2729, 10535)]