28004724

素因数分解:

$2^2\times 3^3\times {\mathrm{11}}^2\times {\mathrm{2143}}^1$

素因数の和:2178

約数の個数: 72

約数和(自身を含む): 79842560

約数和(自身を除く): 51837836

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 54, 66, 99, 108, 121, 132, 198, 242, 297, 363, 396, 484, 594, 726, 1089, 1188, 1452, 2143, 2178, 3267, 4286, 4356, 6429, 6534, 8572, 12858, 13068, 19287, 23573, 25716, 38574, 47146, 57861, 70719, 77148, 94292, 115722, 141438, 212157, 231444, 259303, 282876, 424314, 518606, 636471, 777909, 848628, 1037212, 1272942, 1555818, 2333727, 2545884, 3111636, 4667454, 7001181, 9334908, 14002362, 28004724]

約数ペア:

[(1, 28004724), (2, 14002362), (3, 9334908), (4, 7001181), (6, 4667454), (9, 3111636), (11, 2545884), (12, 2333727), (18, 1555818), (22, 1272942), (27, 1037212), (33, 848628), (36, 777909), (44, 636471), (54, 518606), (66, 424314), (99, 282876), (108, 259303), (121, 231444), (132, 212157), (198, 141438), (242, 115722), (297, 94292), (363, 77148), (396, 70719), (484, 57861), (594, 47146), (726, 38574), (1089, 25716), (1188, 23573), (1452, 19287), (2143, 13068), (2178, 12858), (3267, 8572), (4286, 6534), (4356, 6429)]