978178448

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{109367}}^1$

素因数の和:109431

約数の個数: 40

約数和(自身を含む): 2088491328

約数和(自身を除く): 1110312880

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 2236, 4472, 8944, 109367, 218734, 437468, 874936, 1421771, 1749872, 2843542, 4702781, 5687084, 9405562, 11374168, 18811124, 22748336, 37622248, 61136153, 75244496, 122272306, 244544612, 489089224, 978178448]

約数ペア:

[(1, 978178448), (2, 489089224), (4, 244544612), (8, 122272306), (13, 75244496), (16, 61136153), (26, 37622248), (43, 22748336), (52, 18811124), (86, 11374168), (104, 9405562), (172, 5687084), (208, 4702781), (344, 2843542), (559, 1749872), (688, 1421771), (1118, 874936), (2236, 437468), (4472, 218734), (8944, 109367)]