81234568

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:574

約数の個数: 64

約数和(自身を含む): 171072000

約数和(自身を除く): 89837432

約数列:

[1, 2, 4, 8, 17, 29, 34, 43, 58, 68, 86, 116, 136, 172, 232, 344, 479, 493, 731, 958, 986, 1247, 1462, 1916, 1972, 2494, 2924, 3832, 3944, 4988, 5848, 8143, 9976, 13891, 16286, 20597, 21199, 27782, 32572, 41194, 42398, 55564, 65144, 82388, 84796, 111128, 164776, 169592, 236147, 350149, 472294, 597313, 700298, 944588, 1194626, 1400596, 1889176, 2389252, 2801192, 4778504, 10154321, 20308642, 40617284, 81234568]

約数ペア:

[(1, 81234568), (2, 40617284), (4, 20308642), (8, 10154321), (17, 4778504), (29, 2801192), (34, 2389252), (43, 1889176), (58, 1400596), (68, 1194626), (86, 944588), (116, 700298), (136, 597313), (172, 472294), (232, 350149), (344, 236147), (479, 169592), (493, 164776), (731, 111128), (958, 84796), (986, 82388), (1247, 65144), (1462, 55564), (1916, 42398), (1972, 41194), (2494, 32572), (2924, 27782), (3832, 21199), (3944, 20597), (4988, 16286), (5848, 13891), (8143, 9976)]