256280645

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^2\times {\mathrm{1459}}^1$

素因数の和:1569

約数の個数: 24

約数和(自身を含む): 331653600

約数和(自身を除く): 75372955

約数列:

[1, 5, 19, 43, 95, 215, 817, 1459, 1849, 4085, 7295, 9245, 27721, 35131, 62737, 138605, 175655, 313685, 1192003, 2697691, 5960015, 13488455, 51256129, 256280645]

約数ペア:

[(1, 256280645), (5, 51256129), (19, 13488455), (43, 5960015), (95, 2697691), (215, 1192003), (817, 313685), (1459, 175655), (1849, 138605), (4085, 62737), (7295, 35131), (9245, 27721)]