128828

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:161

約数の個数: 24

約数和(自身を含む): 266112

約数和(自身を除く): 137284

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 107, 172, 214, 301, 428, 602, 749, 1204, 1498, 2996, 4601, 9202, 18404, 32207, 64414, 128828]

約数ペア:

[(1, 128828), (2, 64414), (4, 32207), (7, 18404), (14, 9202), (28, 4601), (43, 2996), (86, 1498), (107, 1204), (172, 749), (214, 602), (301, 428)]