28643188

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{563}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 60641280

約数和(自身を除く): 31998092

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 79, 92, 158, 161, 316, 322, 553, 563, 644, 1106, 1126, 1817, 2212, 2252, 3634, 3941, 7268, 7882, 12719, 12949, 15764, 25438, 25898, 44477, 50876, 51796, 88954, 90643, 177908, 181286, 311339, 362572, 622678, 1022971, 1245356, 2045942, 4091884, 7160797, 14321594, 28643188]

約数ペア:

[(1, 28643188), (2, 14321594), (4, 7160797), (7, 4091884), (14, 2045942), (23, 1245356), (28, 1022971), (46, 622678), (79, 362572), (92, 311339), (158, 181286), (161, 177908), (316, 90643), (322, 88954), (553, 51796), (563, 50876), (644, 44477), (1106, 25898), (1126, 25438), (1817, 15764), (2212, 12949), (2252, 12719), (3634, 7882), (3941, 7268)]