257158084

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{661}}^1\times {\mathrm{5119}}^1$

素因数の和:5803

約数の個数: 24

約数和(自身を含む): 474521600

約数和(自身を除く): 217363516

約数列:

[1, 2, 4, 19, 38, 76, 661, 1322, 2644, 5119, 10238, 12559, 20476, 25118, 50236, 97261, 194522, 389044, 3383659, 6767318, 13534636, 64289521, 128579042, 257158084]

約数ペア:

[(1, 257158084), (2, 128579042), (4, 64289521), (19, 13534636), (38, 6767318), (76, 3383659), (661, 389044), (1322, 194522), (2644, 97261), (5119, 50236), (10238, 25118), (12559, 20476)]