28651428

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{20407}}^1$

素因数の和:20433

約数の個数: 48

約数和(自身を含む): 79999360

約数和(自身を除く): 51347932

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 20407, 40814, 61221, 81628, 122442, 183663, 244884, 265291, 367326, 530582, 550989, 734652, 795873, 1061164, 1101978, 1591746, 2203956, 2387619, 3183492, 4775238, 7162857, 9550476, 14325714, 28651428]

約数ペア:

[(1, 28651428), (2, 14325714), (3, 9550476), (4, 7162857), (6, 4775238), (9, 3183492), (12, 2387619), (13, 2203956), (18, 1591746), (26, 1101978), (27, 1061164), (36, 795873), (39, 734652), (52, 550989), (54, 530582), (78, 367326), (108, 265291), (117, 244884), (156, 183663), (234, 122442), (351, 81628), (468, 61221), (702, 40814), (1404, 20407)]