253368563

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 322300800

約数和(自身を除く): 68932237

約数列:

[1, 7, 29, 37, 49, 61, 79, 203, 259, 427, 553, 1073, 1421, 1769, 1813, 2257, 2291, 2923, 2989, 3871, 4819, 7511, 12383, 15799, 16037, 20461, 33733, 52577, 65453, 84767, 86681, 110593, 112259, 139751, 143227, 178303, 236131, 458171, 593369, 978257, 1248121, 3207197, 4153583, 5170787, 6847799, 8736847, 36195509, 253368563]

約数ペア:

[(1, 253368563), (7, 36195509), (29, 8736847), (37, 6847799), (49, 5170787), (61, 4153583), (79, 3207197), (203, 1248121), (259, 978257), (427, 593369), (553, 458171), (1073, 236131), (1421, 178303), (1769, 143227), (1813, 139751), (2257, 112259), (2291, 110593), (2923, 86681), (2989, 84767), (3871, 65453), (4819, 52577), (7511, 33733), (12383, 20461), (15799, 16037)]