291213896

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{257}}^1\times {\mathrm{1019}}^1$

素因数の和:1421

約数の個数: 32

約数和(自身を含む): 552636000

約数和(自身を除く): 261422104

約数列:

[1, 2, 4, 8, 139, 257, 278, 514, 556, 1019, 1028, 1112, 2038, 2056, 4076, 8152, 35723, 71446, 141641, 142892, 261883, 283282, 285784, 523766, 566564, 1047532, 1133128, 2095064, 36401737, 72803474, 145606948, 291213896]

約数ペア:

[(1, 291213896), (2, 145606948), (4, 72803474), (8, 36401737), (139, 2095064), (257, 1133128), (278, 1047532), (514, 566564), (556, 523766), (1019, 285784), (1028, 283282), (1112, 261883), (2038, 142892), (2056, 141641), (4076, 71446), (8152, 35723)]