81215992

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:213

約数の個数: 96

約数和(自身を含む): 185518080

約数和(自身を除く): 104302088

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 43, 44, 52, 86, 88, 104, 127, 143, 169, 172, 254, 286, 338, 344, 473, 508, 559, 572, 676, 946, 1016, 1118, 1144, 1352, 1397, 1651, 1859, 1892, 2236, 2794, 3302, 3718, 3784, 4472, 5461, 5588, 6149, 6604, 7267, 7436, 10922, 11176, 12298, 13208, 14534, 14872, 18161, 21463, 21844, 24596, 29068, 36322, 42926, 43688, 49192, 58136, 60071, 70993, 72644, 79937, 85852, 120142, 141986, 145288, 159874, 171704, 236093, 240284, 283972, 319748, 472186, 480568, 567944, 639496, 780923, 922909, 944372, 1561846, 1845818, 1888744, 3123692, 3691636, 6247384, 7383272, 10151999, 20303998, 40607996, 81215992]

約数ペア:

[(1, 81215992), (2, 40607996), (4, 20303998), (8, 10151999), (11, 7383272), (13, 6247384), (22, 3691636), (26, 3123692), (43, 1888744), (44, 1845818), (52, 1561846), (86, 944372), (88, 922909), (104, 780923), (127, 639496), (143, 567944), (169, 480568), (172, 472186), (254, 319748), (286, 283972), (338, 240284), (344, 236093), (473, 171704), (508, 159874), (559, 145288), (572, 141986), (676, 120142), (946, 85852), (1016, 79937), (1118, 72644), (1144, 70993), (1352, 60071), (1397, 58136), (1651, 49192), (1859, 43688), (1892, 42926), (2236, 36322), (2794, 29068), (3302, 24596), (3718, 21844), (3784, 21463), (4472, 18161), (5461, 14872), (5588, 14534), (6149, 13208), (6604, 12298), (7267, 11176), (7436, 10922)]