28287056

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:256

約数の個数: 80

約数和(自身を含む): 66662400

約数和(自身を除く): 38375344

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 79, 92, 112, 139, 158, 161, 184, 278, 316, 322, 368, 553, 556, 632, 644, 973, 1106, 1112, 1264, 1288, 1817, 1946, 2212, 2224, 2576, 3197, 3634, 3892, 4424, 6394, 7268, 7784, 8848, 10981, 12719, 12788, 14536, 15568, 21962, 22379, 25438, 25576, 29072, 43924, 44758, 50876, 51152, 76867, 87848, 89516, 101752, 153734, 175696, 179032, 203504, 252563, 307468, 358064, 505126, 614936, 1010252, 1229872, 1767941, 2020504, 3535882, 4041008, 7071764, 14143528, 28287056]

約数ペア:

[(1, 28287056), (2, 14143528), (4, 7071764), (7, 4041008), (8, 3535882), (14, 2020504), (16, 1767941), (23, 1229872), (28, 1010252), (46, 614936), (56, 505126), (79, 358064), (92, 307468), (112, 252563), (139, 203504), (158, 179032), (161, 175696), (184, 153734), (278, 101752), (316, 89516), (322, 87848), (368, 76867), (553, 51152), (556, 50876), (632, 44758), (644, 43924), (973, 29072), (1106, 25576), (1112, 25438), (1264, 22379), (1288, 21962), (1817, 15568), (1946, 14536), (2212, 12788), (2224, 12719), (2576, 10981), (3197, 8848), (3634, 7784), (3892, 7268), (4424, 6394)]