7210025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 9657120

約数和(自身を除く): 2447095

約数列:

[1, 5, 19, 25, 43, 95, 215, 353, 475, 817, 1075, 1765, 4085, 6707, 8825, 15179, 20425, 33535, 75895, 167675, 288401, 379475, 1442005, 7210025]

約数ペア:

[(1, 7210025), (5, 1442005), (19, 379475), (25, 288401), (43, 167675), (95, 75895), (215, 33535), (353, 20425), (475, 15179), (817, 8825), (1075, 6707), (1765, 4085)]