257551252

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{30559}}^1$

素因数の和:30620

約数の個数: 36

約数和(自身を含む): 536511360

約数和(自身を除く): 278960108

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 602, 1204, 2107, 4214, 8428, 30559, 61118, 122236, 213913, 427826, 855652, 1314037, 1497391, 2628074, 2994782, 5256148, 5989564, 9198259, 18396518, 36793036, 64387813, 128775626, 257551252]

約数ペア:

[(1, 257551252), (2, 128775626), (4, 64387813), (7, 36793036), (14, 18396518), (28, 9198259), (43, 5989564), (49, 5256148), (86, 2994782), (98, 2628074), (172, 1497391), (196, 1314037), (301, 855652), (602, 427826), (1204, 213913), (2107, 122236), (4214, 61118), (8428, 30559)]