778875254

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{641}}^1$

素因数の和:956

約数の個数: 32

約数和(自身を含む): 1220313600

約数和(自身を除く): 441438346

約数列:

[1, 2, 43, 71, 86, 142, 199, 398, 641, 1282, 3053, 6106, 8557, 14129, 17114, 27563, 28258, 45511, 55126, 91022, 127559, 255118, 607547, 1215094, 1956973, 3913946, 5485037, 9056689, 10970074, 18113378, 389437627, 778875254]

約数ペア:

[(1, 778875254), (2, 389437627), (43, 18113378), (71, 10970074), (86, 9056689), (142, 5485037), (199, 3913946), (398, 1956973), (641, 1215094), (1282, 607547), (3053, 255118), (6106, 127559), (8557, 91022), (14129, 55126), (17114, 45511), (27563, 28258)]