18220436

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 36126720

約数和(自身を除く): 17906284

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 89, 124, 127, 178, 254, 356, 403, 508, 806, 1157, 1612, 1651, 2314, 2759, 3302, 3937, 4628, 5518, 6604, 7874, 11036, 11303, 15748, 22606, 35867, 45212, 51181, 71734, 102362, 143468, 146939, 204724, 293878, 350393, 587756, 700786, 1401572, 4555109, 9110218, 18220436]

約数ペア:

[(1, 18220436), (2, 9110218), (4, 4555109), (13, 1401572), (26, 700786), (31, 587756), (52, 350393), (62, 293878), (89, 204724), (124, 146939), (127, 143468), (178, 102362), (254, 71734), (356, 51181), (403, 45212), (508, 35867), (806, 22606), (1157, 15748), (1612, 11303), (1651, 11036), (2314, 7874), (2759, 6604), (3302, 5518), (3937, 4628)]