20798907856

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{602099}}^1$

素因数の和:602251

約数の個数: 40

約数和(自身を含む): 43004390400

約数和(自身を除く): 22205482544

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 127, 136, 254, 272, 508, 1016, 2032, 2159, 4318, 8636, 17272, 34544, 602099, 1204198, 2408396, 4816792, 9633584, 10235683, 20471366, 40942732, 76466573, 81885464, 152933146, 163770928, 305866292, 611732584, 1223465168, 1299931741, 2599863482, 5199726964, 10399453928, 20798907856]

約数ペア:

[(1, 20798907856), (2, 10399453928), (4, 5199726964), (8, 2599863482), (16, 1299931741), (17, 1223465168), (34, 611732584), (68, 305866292), (127, 163770928), (136, 152933146), (254, 81885464), (272, 76466573), (508, 40942732), (1016, 20471366), (2032, 10235683), (2159, 9633584), (4318, 4816792), (8636, 2408396), (17272, 1204198), (34544, 602099)]