289317025

素因数分解:

$5^2\times {\mathrm{101}}^1\times {\mathrm{149}}^1\times {\mathrm{769}}^1$

素因数の和:1029

約数の個数: 24

約数和(自身を含む): 365211000

約数和(自身を除く): 75893975

約数列:

[1, 5, 25, 101, 149, 505, 745, 769, 2525, 3725, 3845, 15049, 19225, 75245, 77669, 114581, 376225, 388345, 572905, 1941725, 2864525, 11572681, 57863405, 289317025]

約数ペア:

[(1, 289317025), (5, 57863405), (25, 11572681), (101, 2864525), (149, 1941725), (505, 572905), (745, 388345), (769, 376225), (2525, 114581), (3725, 77669), (3845, 75245), (15049, 19225)]