16518025

素因数分解:

$5^2\times {\mathrm{23}}^2\times {\mathrm{1249}}^1$

素因数の和:1305

約数の個数: 18

約数和(自身を含む): 21428750

約数和(自身を除く): 4910725

約数列:

[1, 5, 23, 25, 115, 529, 575, 1249, 2645, 6245, 13225, 28727, 31225, 143635, 660721, 718175, 3303605, 16518025]

約数ペア:

[(1, 16518025), (5, 3303605), (23, 718175), (25, 660721), (115, 143635), (529, 31225), (575, 28727), (1249, 13225), (2645, 6245)]