20755025

素因数分解:

$5^2\times {\mathrm{43}}^2\times {\mathrm{449}}^1$

素因数の和:545

約数の個数: 18

約数和(自身を含む): 26407350

約数和(自身を除く): 5652325

約数列:

[1, 5, 25, 43, 215, 449, 1075, 1849, 2245, 9245, 11225, 19307, 46225, 96535, 482675, 830201, 4151005, 20755025]

約数ペア:

[(1, 20755025), (5, 4151005), (25, 830201), (43, 482675), (215, 96535), (449, 46225), (1075, 19307), (1849, 11225), (2245, 9245)]