28689528

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{439}}^1$

素因数の和:844

約数の個数: 64

約数和(自身を含む): 82368000

約数和(自身を除く): 53678472

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 389, 439, 778, 878, 1167, 1317, 1556, 1756, 2334, 2634, 2723, 3073, 3112, 3512, 4668, 5268, 5446, 6146, 8169, 9219, 9336, 10536, 10892, 12292, 16338, 18438, 21784, 24584, 32676, 36876, 65352, 73752, 170771, 341542, 512313, 683084, 1024626, 1195397, 1366168, 2049252, 2390794, 3586191, 4098504, 4781588, 7172382, 9563176, 14344764, 28689528]

約数ペア:

[(1, 28689528), (2, 14344764), (3, 9563176), (4, 7172382), (6, 4781588), (7, 4098504), (8, 3586191), (12, 2390794), (14, 2049252), (21, 1366168), (24, 1195397), (28, 1024626), (42, 683084), (56, 512313), (84, 341542), (168, 170771), (389, 73752), (439, 65352), (778, 36876), (878, 32676), (1167, 24584), (1317, 21784), (1556, 18438), (1756, 16338), (2334, 12292), (2634, 10892), (2723, 10536), (3073, 9336), (3112, 9219), (3512, 8169), (4668, 6146), (5268, 5446)]