7128325

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 9548000

約数和(自身を除く): 2419675

約数列:

[1, 5, 19, 25, 43, 95, 215, 349, 475, 817, 1075, 1745, 4085, 6631, 8725, 15007, 20425, 33155, 75035, 165775, 285133, 375175, 1425665, 7128325]

約数ペア:

[(1, 7128325), (5, 1425665), (19, 375175), (25, 285133), (43, 165775), (95, 75035), (215, 33155), (349, 20425), (475, 15007), (817, 8725), (1075, 6631), (1745, 4085)]