257942738

素因数分解:

$2^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1\times {\mathrm{3617}}^1$

素因数の和:3997

約数の個数: 16

約数和(自身を含む): 391134744

約数和(自身を除く): 133192006

約数列:

[1, 2, 181, 197, 362, 394, 3617, 7234, 35657, 71314, 654677, 712549, 1309354, 1425098, 128971369, 257942738]

約数ペア:

[(1, 257942738), (2, 128971369), (181, 1425098), (197, 1309354), (362, 712549), (394, 654677), (3617, 71314), (7234, 35657)]