20003825

素因数分解:

$5^2\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 25628568

約数和(自身を除く): 5624743

約数列:

[1, 5, 25, 73, 97, 113, 365, 485, 565, 1825, 2425, 2825, 7081, 8249, 10961, 35405, 41245, 54805, 177025, 206225, 274025, 800153, 4000765, 20003825]

約数ペア:

[(1, 20003825), (5, 4000765), (25, 800153), (73, 274025), (97, 206225), (113, 177025), (365, 54805), (485, 41245), (565, 35405), (1825, 10961), (2425, 8249), (2825, 7081)]