278313123

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1\times {\mathrm{701}}^1$

素因数の和:995

約数の個数: 32

約数和(自身を含む): 414865152

約数和(自身を除く): 136552029

約数列:

[1, 3, 11, 33, 53, 159, 227, 583, 681, 701, 1749, 2103, 2497, 7491, 7711, 12031, 23133, 36093, 37153, 111459, 132341, 159127, 397023, 408683, 477381, 1226049, 1750397, 5251191, 8433731, 25301193, 92771041, 278313123]

約数ペア:

[(1, 278313123), (3, 92771041), (11, 25301193), (33, 8433731), (53, 5251191), (159, 1750397), (227, 1226049), (583, 477381), (681, 408683), (701, 397023), (1749, 159127), (2103, 132341), (2497, 111459), (7491, 37153), (7711, 36093), (12031, 23133)]