28940912

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1$

素因数の和:191

約数の個数: 120

約数和(自身を含む): 76245120

約数和(自身を除く): 47304208

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 112, 139, 143, 154, 169, 176, 182, 208, 278, 286, 308, 338, 364, 556, 572, 616, 676, 728, 973, 1001, 1112, 1144, 1183, 1232, 1352, 1456, 1529, 1807, 1859, 1946, 2002, 2224, 2288, 2366, 2704, 3058, 3614, 3718, 3892, 4004, 4732, 6116, 7228, 7436, 7784, 8008, 9464, 10703, 12232, 12649, 13013, 14456, 14872, 15568, 16016, 18928, 19877, 21406, 23491, 24464, 25298, 26026, 28912, 29744, 39754, 42812, 46982, 50596, 52052, 79508, 85624, 93964, 101192, 104104, 139139, 159016, 164437, 171248, 187928, 202384, 208208, 258401, 278278, 318032, 328874, 375856, 516802, 556556, 657748, 1033604, 1113112, 1315496, 1808807, 2067208, 2226224, 2630992, 3617614, 4134416, 7235228, 14470456, 28940912]

約数ペア:

[(1, 28940912), (2, 14470456), (4, 7235228), (7, 4134416), (8, 3617614), (11, 2630992), (13, 2226224), (14, 2067208), (16, 1808807), (22, 1315496), (26, 1113112), (28, 1033604), (44, 657748), (52, 556556), (56, 516802), (77, 375856), (88, 328874), (91, 318032), (104, 278278), (112, 258401), (139, 208208), (143, 202384), (154, 187928), (169, 171248), (176, 164437), (182, 159016), (208, 139139), (278, 104104), (286, 101192), (308, 93964), (338, 85624), (364, 79508), (556, 52052), (572, 50596), (616, 46982), (676, 42812), (728, 39754), (973, 29744), (1001, 28912), (1112, 26026), (1144, 25298), (1183, 24464), (1232, 23491), (1352, 21406), (1456, 19877), (1529, 18928), (1807, 16016), (1859, 15568), (1946, 14872), (2002, 14456), (2224, 13013), (2288, 12649), (2366, 12232), (2704, 10703), (3058, 9464), (3614, 8008), (3718, 7784), (3892, 7436), (4004, 7228), (4732, 6116)]