78199996

素因数分解:

$2^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{21991}}^1$

素因数の和:22129

約数の個数: 24

約数和(自身を含む): 157638656

約数和(自身を除く): 79438660

約数列:

[1, 2, 4, 7, 14, 28, 127, 254, 508, 889, 1778, 3556, 21991, 43982, 87964, 153937, 307874, 615748, 2792857, 5585714, 11171428, 19549999, 39099998, 78199996]

約数ペア:

[(1, 78199996), (2, 39099998), (4, 19549999), (7, 11171428), (14, 5585714), (28, 2792857), (127, 615748), (254, 307874), (508, 153937), (889, 87964), (1778, 43982), (3556, 21991)]