28758392

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 59292000

約数和(自身を除く): 30533608

約数列:

[1, 2, 4, 8, 13, 26, 52, 89, 104, 169, 178, 239, 338, 356, 478, 676, 712, 956, 1157, 1352, 1912, 2314, 3107, 4628, 6214, 9256, 12428, 15041, 21271, 24856, 30082, 40391, 42542, 60164, 80782, 85084, 120328, 161564, 170168, 276523, 323128, 553046, 1106092, 2212184, 3594799, 7189598, 14379196, 28758392]

約数ペア:

[(1, 28758392), (2, 14379196), (4, 7189598), (8, 3594799), (13, 2212184), (26, 1106092), (52, 553046), (89, 323128), (104, 276523), (169, 170168), (178, 161564), (239, 120328), (338, 85084), (356, 80782), (478, 60164), (676, 42542), (712, 40391), (956, 30082), (1157, 24856), (1352, 21271), (1912, 15041), (2314, 12428), (3107, 9256), (4628, 6214)]