72981459

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:289

約数の個数: 48

約数和(自身を含む): 117888000

約数和(自身を除く): 44906541

約数列:

[1, 3, 9, 17, 27, 47, 51, 141, 153, 199, 289, 423, 459, 597, 799, 867, 1269, 1791, 2397, 2601, 3383, 5373, 7191, 7803, 9353, 10149, 13583, 21573, 28059, 30447, 40749, 57511, 84177, 91341, 122247, 159001, 172533, 252531, 366741, 477003, 517599, 1431009, 1552797, 2703017, 4293027, 8109051, 24327153, 72981459]

約数ペア:

[(1, 72981459), (3, 24327153), (9, 8109051), (17, 4293027), (27, 2703017), (47, 1552797), (51, 1431009), (141, 517599), (153, 477003), (199, 366741), (289, 252531), (423, 172533), (459, 159001), (597, 122247), (799, 91341), (867, 84177), (1269, 57511), (1791, 40749), (2397, 30447), (2601, 28059), (3383, 21573), (5373, 13583), (7191, 10149), (7803, 9353)]