289690828

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{240607}}^1$

素因数の和:240661

約数の個数: 24

約数和(自身を含む): 592858112

約数和(自身を除く): 303167284

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 240607, 481214, 962428, 1684249, 3368498, 6736996, 10346101, 20692202, 41384404, 72422707, 144845414, 289690828]

約数ペア:

[(1, 289690828), (2, 144845414), (4, 72422707), (7, 41384404), (14, 20692202), (28, 10346101), (43, 6736996), (86, 3368498), (172, 1684249), (301, 962428), (602, 481214), (1204, 240607)]