81872128

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{337}}^1$

素因数の和:439

約数の個数: 72

約数和(自身を含む): 178935848

約数和(自身を除く): 97063720

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 73, 104, 128, 146, 208, 256, 292, 337, 416, 584, 674, 832, 949, 1168, 1348, 1664, 1898, 2336, 2696, 3328, 3796, 4381, 4672, 5392, 7592, 8762, 9344, 10784, 15184, 17524, 18688, 21568, 24601, 30368, 35048, 43136, 49202, 60736, 70096, 86272, 98404, 121472, 140192, 196808, 242944, 280384, 319813, 393616, 560768, 639626, 787232, 1121536, 1279252, 1574464, 2558504, 3148928, 5117008, 6297856, 10234016, 20468032, 40936064, 81872128]

約数ペア:

[(1, 81872128), (2, 40936064), (4, 20468032), (8, 10234016), (13, 6297856), (16, 5117008), (26, 3148928), (32, 2558504), (52, 1574464), (64, 1279252), (73, 1121536), (104, 787232), (128, 639626), (146, 560768), (208, 393616), (256, 319813), (292, 280384), (337, 242944), (416, 196808), (584, 140192), (674, 121472), (832, 98404), (949, 86272), (1168, 70096), (1348, 60736), (1664, 49202), (1898, 43136), (2336, 35048), (2696, 30368), (3328, 24601), (3796, 21568), (4381, 18688), (4672, 17524), (5392, 15184), (7592, 10784), (8762, 9344)]