28528734

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:241

約数の個数: 64

約数和(自身を含む): 64157184

約数和(自身を除く): 35628450

約数列:

[1, 2, 3, 6, 13, 26, 39, 53, 67, 78, 103, 106, 134, 159, 201, 206, 309, 318, 402, 618, 689, 871, 1339, 1378, 1742, 2067, 2613, 2678, 3551, 4017, 4134, 5226, 5459, 6901, 7102, 8034, 10653, 10918, 13802, 16377, 20703, 21306, 32754, 41406, 46163, 70967, 89713, 92326, 138489, 141934, 179426, 212901, 269139, 276978, 365753, 425802, 538278, 731506, 1097259, 2194518, 4754789, 9509578, 14264367, 28528734]

約数ペア:

[(1, 28528734), (2, 14264367), (3, 9509578), (6, 4754789), (13, 2194518), (26, 1097259), (39, 731506), (53, 538278), (67, 425802), (78, 365753), (103, 276978), (106, 269139), (134, 212901), (159, 179426), (201, 141934), (206, 138489), (309, 92326), (318, 89713), (402, 70967), (618, 46163), (689, 41406), (871, 32754), (1339, 21306), (1378, 20703), (1742, 16377), (2067, 13802), (2613, 10918), (2678, 10653), (3551, 8034), (4017, 7102), (4134, 6901), (5226, 5459)]